Home / 21,850.25-30,169.04-15,124.23

Finding the Fourth Proportional to 21,850.25, 30,169.04 and 15,124.23

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Solution

The fourth proportional to 21,850.25, 30,169.04 and 15,124.23 is: 20,882.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,850.25 : 30,169.04 = 15,124.23 : x
  2. Step 2: Convert to fraction form
    21,850.25/30,169.04 = 15,124.23/x
  3. Step 3: Cross multiply
    21,850.25x = 30,169.04 × 15,124.23
  4. Step 4: Simplify right side
    21,850.25x = 456,283,424.22
  5. Step 5: Solve for x
    x = 456,283,424.22/21,850.25
  6. Step 6: Final answer
    x = 20,882.30

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Double scale
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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.