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Finding the Fourth Proportional to 29,159.92, 40,194.12 and 19,712.08

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Solution

The fourth proportional to 29,159.92, 40,194.12 and 19,712.08 is: 27,171.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,159.92 : 40,194.12 = 19,712.08 : x
  2. Step 2: Convert to fraction form
    29,159.92/40,194.12 = 19,712.08/x
  3. Step 3: Cross multiply
    29,159.92x = 40,194.12 × 19,712.08
  4. Step 4: Simplify right side
    29,159.92x = 792,309,708.97
  5. Step 5: Solve for x
    x = 792,309,708.97/29,159.92
  6. Step 6: Final answer
    x = 27,171.19

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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.