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Finding the Fourth Proportional to 57,019.70, 85,494.01 and 21,951.15

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Solution

The fourth proportional to 57,019.70, 85,494.01 and 21,951.15 is: 32,913.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,019.70 : 85,494.01 = 21,951.15 : x
  2. Step 2: Convert to fraction form
    57,019.70/85,494.01 = 21,951.15/x
  3. Step 3: Cross multiply
    57,019.70x = 85,494.01 × 21,951.15
  4. Step 4: Simplify right side
    57,019.70x = 1,876,691,837.61
  5. Step 5: Solve for x
    x = 1,876,691,837.61/57,019.70
  6. Step 6: Final answer
    x = 32,913.04

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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.