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Finding the Fourth Proportional to 49,630.80, 74,381.40 and 20,024.40

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Solution

The fourth proportional to 49,630.80, 74,381.40 and 20,024.40 is: 30,010.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,630.80 : 74,381.40 = 20,024.40 : x
  2. Step 2: Convert to fraction form
    49,630.80/74,381.40 = 20,024.40/x
  3. Step 3: Cross multiply
    49,630.80x = 74,381.40 × 20,024.40
  4. Step 4: Simplify right side
    49,630.80x = 1,489,442,906.16
  5. Step 5: Solve for x
    x = 1,489,442,906.16/49,630.80
  6. Step 6: Final answer
    x = 30,010.46

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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.