Home / 20,437.92-28,194.48-17,781.12

Finding the Fourth Proportional to 20,437.92, 28,194.48 and 17,781.12

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Solution

The fourth proportional to 20,437.92, 28,194.48 and 17,781.12 is: 24,529.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,437.92 : 28,194.48 = 17,781.12 : x
  2. Step 2: Convert to fraction form
    20,437.92/28,194.48 = 17,781.12/x
  3. Step 3: Cross multiply
    20,437.92x = 28,194.48 × 17,781.12
  4. Step 4: Simplify right side
    20,437.92x = 501,329,432.22
  5. Step 5: Solve for x
    x = 501,329,432.22/20,437.92
  6. Step 6: Final answer
    x = 24,529.38

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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.