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Finding the Fourth Proportional to 39,149.60, 58,724.40 and 29,818.40

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Solution

The fourth proportional to 39,149.60, 58,724.40 and 29,818.40 is: 44,727.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,149.60 : 58,724.40 = 29,818.40 : x
  2. Step 2: Convert to fraction form
    39,149.60/58,724.40 = 29,818.40/x
  3. Step 3: Cross multiply
    39,149.60x = 58,724.40 × 29,818.40
  4. Step 4: Simplify right side
    39,149.60x = 1,751,067,648.96
  5. Step 5: Solve for x
    x = 1,751,067,648.96/39,149.60
  6. Step 6: Final answer
    x = 44,727.60

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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.