Home / 25,920.76-38,879.52-13,437.04

Finding the Fourth Proportional to 25,920.76, 38,879.52 and 13,437.04

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Solution

The fourth proportional to 25,920.76, 38,879.52 and 13,437.04 is: 20,154.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,920.76 : 38,879.52 = 13,437.04 : x
  2. Step 2: Convert to fraction form
    25,920.76/38,879.52 = 13,437.04/x
  3. Step 3: Cross multiply
    25,920.76x = 38,879.52 × 13,437.04
  4. Step 4: Simplify right side
    25,920.76x = 522,425,665.42
  5. Step 5: Solve for x
    x = 522,425,665.42/25,920.76
  6. Step 6: Final answer
    x = 20,154.72

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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.