Home / 42,503.60-63,755.51-20,311.92

Finding the Fourth Proportional to 42,503.60, 63,755.51 and 20,311.92

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Solution

The fourth proportional to 42,503.60, 63,755.51 and 20,311.92 is: 30,467.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,503.60 : 63,755.51 = 20,311.92 : x
  2. Step 2: Convert to fraction form
    42,503.60/63,755.51 = 20,311.92/x
  3. Step 3: Cross multiply
    42,503.60x = 63,755.51 × 20,311.92
  4. Step 4: Simplify right side
    42,503.60x = 1,294,996,717.12
  5. Step 5: Solve for x
    x = 1,294,996,717.12/42,503.60
  6. Step 6: Final answer
    x = 30,467.93

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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.