Home / 25,129.68-34,679.33-13,800.20

Finding the Fourth Proportional to 25,129.68, 34,679.33 and 13,800.20

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Solution

The fourth proportional to 25,129.68, 34,679.33 and 13,800.20 is: 19,044.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,129.68 : 34,679.33 = 13,800.20 : x
  2. Step 2: Convert to fraction form
    25,129.68/34,679.33 = 13,800.20/x
  3. Step 3: Cross multiply
    25,129.68x = 34,679.33 × 13,800.20
  4. Step 4: Simplify right side
    25,129.68x = 478,581,447.47
  5. Step 5: Solve for x
    x = 478,581,447.47/25,129.68
  6. Step 6: Final answer
    x = 19,044.47

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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.