Home / 29,429.97-40,630.10-19,387.59

Finding the Fourth Proportional to 29,429.97, 40,630.10 and 19,387.59

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Solution

The fourth proportional to 29,429.97, 40,630.10 and 19,387.59 is: 26,765.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,429.97 : 40,630.10 = 19,387.59 : x
  2. Step 2: Convert to fraction form
    29,429.97/40,630.10 = 19,387.59/x
  3. Step 3: Cross multiply
    29,429.97x = 40,630.10 × 19,387.59
  4. Step 4: Simplify right side
    29,429.97x = 787,719,623.52
  5. Step 5: Solve for x
    x = 787,719,623.52/29,429.97
  6. Step 6: Final answer
    x = 26,765.90

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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.