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Finding the Fourth Proportional to 29,963.60, 45,042.60 and 25,686.80

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Solution

The fourth proportional to 29,963.60, 45,042.60 and 25,686.80 is: 38,613.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,963.60 : 45,042.60 = 25,686.80 : x
  2. Step 2: Convert to fraction form
    29,963.60/45,042.60 = 25,686.80/x
  3. Step 3: Cross multiply
    29,963.60x = 45,042.60 × 25,686.80
  4. Step 4: Simplify right side
    29,963.60x = 1,157,000,257.68
  5. Step 5: Solve for x
    x = 1,157,000,257.68/29,963.60
  6. Step 6: Final answer
    x = 38,613.53

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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.