Home / 22,218.92-30,642.28-18,436.10

Finding the Fourth Proportional to 22,218.92, 30,642.28 and 18,436.10

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Solution

The fourth proportional to 22,218.92, 30,642.28 and 18,436.10 is: 25,425.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,218.92 : 30,642.28 = 18,436.10 : x
  2. Step 2: Convert to fraction form
    22,218.92/30,642.28 = 18,436.10/x
  3. Step 3: Cross multiply
    22,218.92x = 30,642.28 × 18,436.10
  4. Step 4: Simplify right side
    22,218.92x = 564,924,138.31
  5. Step 5: Solve for x
    x = 564,924,138.31/22,218.92
  6. Step 6: Final answer
    x = 25,425.36

Related Problems

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Half scale
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Double scale
Find fourth proportional to 22,219.92, 30,643.66 and 18,437.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.