Home / 19,542.96-29,248.56-12,121.92

Finding the Fourth Proportional to 19,542.96, 29,248.56 and 12,121.92

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Solution

The fourth proportional to 19,542.96, 29,248.56 and 12,121.92 is: 18,142.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,542.96 : 29,248.56 = 12,121.92 : x
  2. Step 2: Convert to fraction form
    19,542.96/29,248.56 = 12,121.92/x
  3. Step 3: Cross multiply
    19,542.96x = 29,248.56 × 12,121.92
  4. Step 4: Simplify right side
    19,542.96x = 354,548,704.44
  5. Step 5: Solve for x
    x = 354,548,704.44/19,542.96
  6. Step 6: Final answer
    x = 18,142.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.