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Finding the Fourth Proportional to 39,475, 54,475.50 and 22,708

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Solution

The fourth proportional to 39,475, 54,475.50 and 22,708 is: 31,337.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,475 : 54,475.50 = 22,708 : x
  2. Step 2: Convert to fraction form
    39,475/54,475.50 = 22,708/x
  3. Step 3: Cross multiply
    39,475x = 54,475.50 × 22,708
  4. Step 4: Simplify right side
    39,475x = 1,237,029,654
  5. Step 5: Solve for x
    x = 1,237,029,654/39,475
  6. Step 6: Final answer
    x = 31,337.04

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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.