Home / 22,218.20-30,641.25-18,435.36

Finding the Fourth Proportional to 22,218.20, 30,641.25 and 18,435.36

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Solution

The fourth proportional to 22,218.20, 30,641.25 and 18,435.36 is: 25,424.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,218.20 : 30,641.25 = 18,435.36 : x
  2. Step 2: Convert to fraction form
    22,218.20/30,641.25 = 18,435.36/x
  3. Step 3: Cross multiply
    22,218.20x = 30,641.25 × 18,435.36
  4. Step 4: Simplify right side
    22,218.20x = 564,882,658.64
  5. Step 5: Solve for x
    x = 564,882,658.64/22,218.20
  6. Step 6: Final answer
    x = 25,424.32

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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.