Home / 21,252.03-29,327.21-11,691.87

Finding the Fourth Proportional to 21,252.03, 29,327.21 and 11,691.87

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Solution

The fourth proportional to 21,252.03, 29,327.21 and 11,691.87 is: 16,134.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,252.03 : 29,327.21 = 11,691.87 : x
  2. Step 2: Convert to fraction form
    21,252.03/29,327.21 = 11,691.87/x
  3. Step 3: Cross multiply
    21,252.03x = 29,327.21 × 11,691.87
  4. Step 4: Simplify right side
    21,252.03x = 342,890,032.92
  5. Step 5: Solve for x
    x = 342,890,032.92/21,252.03
  6. Step 6: Final answer
    x = 16,134.46

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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.