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Finding the Fourth Proportional to 19,815.60, 29,707.02 and 15,452.40

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Solution

The fourth proportional to 19,815.60, 29,707.02 and 15,452.40 is: 23,165.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.60 : 29,707.02 = 15,452.40 : x
  2. Step 2: Convert to fraction form
    19,815.60/29,707.02 = 15,452.40/x
  3. Step 3: Cross multiply
    19,815.60x = 29,707.02 × 15,452.40
  4. Step 4: Simplify right side
    19,815.60x = 459,044,755.85
  5. Step 5: Solve for x
    x = 459,044,755.85/19,815.60
  6. Step 6: Final answer
    x = 23,165.83

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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.