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Finding the Fourth Proportional to 29,614.43, 40,839.64 and 19,390.20

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Solution

The fourth proportional to 29,614.43, 40,839.64 and 19,390.20 is: 26,739.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,614.43 : 40,839.64 = 19,390.20 : x
  2. Step 2: Convert to fraction form
    29,614.43/40,839.64 = 19,390.20/x
  3. Step 3: Cross multiply
    29,614.43x = 40,839.64 × 19,390.20
  4. Step 4: Simplify right side
    29,614.43x = 791,888,841.15
  5. Step 5: Solve for x
    x = 791,888,841.15/29,614.43
  6. Step 6: Final answer
    x = 26,739.97

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1.5x scale

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.