Home / 29,531.76-40,758.52-18,207.92

Finding the Fourth Proportional to 29,531.76, 40,758.52 and 18,207.92

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Solution

The fourth proportional to 29,531.76, 40,758.52 and 18,207.92 is: 25,129.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,531.76 : 40,758.52 = 18,207.92 : x
  2. Step 2: Convert to fraction form
    29,531.76/40,758.52 = 18,207.92/x
  3. Step 3: Cross multiply
    29,531.76x = 40,758.52 × 18,207.92
  4. Step 4: Simplify right side
    29,531.76x = 742,127,871.48
  5. Step 5: Solve for x
    x = 742,127,871.48/29,531.76
  6. Step 6: Final answer
    x = 25,129.82

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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.