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Finding the Fourth Proportional to 39,454.80, 59,153.04 and 18,654

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Solution

The fourth proportional to 39,454.80, 59,153.04 and 18,654 is: 27,967.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,454.80 : 59,153.04 = 18,654 : x
  2. Step 2: Convert to fraction form
    39,454.80/59,153.04 = 18,654/x
  3. Step 3: Cross multiply
    39,454.80x = 59,153.04 × 18,654
  4. Step 4: Simplify right side
    39,454.80x = 1,103,440,808.16
  5. Step 5: Solve for x
    x = 1,103,440,808.16/39,454.80
  6. Step 6: Final answer
    x = 27,967.21

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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.