Home / 25,627.77-38,397.92-13,920.03

Finding the Fourth Proportional to 25,627.77, 38,397.92 and 13,920.03

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Solution

The fourth proportional to 25,627.77, 38,397.92 and 13,920.03 is: 20,856.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,627.77 : 38,397.92 = 13,920.03 : x
  2. Step 2: Convert to fraction form
    25,627.77/38,397.92 = 13,920.03/x
  3. Step 3: Cross multiply
    25,627.77x = 38,397.92 × 13,920.03
  4. Step 4: Simplify right side
    25,627.77x = 534,500,128.74
  5. Step 5: Solve for x
    x = 534,500,128.74/25,627.77
  6. Step 6: Final answer
    x = 20,856.29

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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.