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Finding the Fourth Proportional to 40,793.84, 61,059.42 and 21,045.20

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Solution

The fourth proportional to 40,793.84, 61,059.42 and 21,045.20 is: 31,500.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,793.84 : 61,059.42 = 21,045.20 : x
  2. Step 2: Convert to fraction form
    40,793.84/61,059.42 = 21,045.20/x
  3. Step 3: Cross multiply
    40,793.84x = 61,059.42 × 21,045.20
  4. Step 4: Simplify right side
    40,793.84x = 1,285,007,705.78
  5. Step 5: Solve for x
    x = 1,285,007,705.78/40,793.84
  6. Step 6: Final answer
    x = 31,500.04

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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.