Home / 25,331.52-38,008.21-13,642.40

Finding the Fourth Proportional to 25,331.52, 38,008.21 and 13,642.40

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Solution

The fourth proportional to 25,331.52, 38,008.21 and 13,642.40 is: 20,469.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,331.52 : 38,008.21 = 13,642.40 : x
  2. Step 2: Convert to fraction form
    25,331.52/38,008.21 = 13,642.40/x
  3. Step 3: Cross multiply
    25,331.52x = 38,008.21 × 13,642.40
  4. Step 4: Simplify right side
    25,331.52x = 518,523,204.10
  5. Step 5: Solve for x
    x = 518,523,204.10/25,331.52
  6. Step 6: Final answer
    x = 20,469.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.