Home / 21,737.56-29,998.56-12,177.86

Finding the Fourth Proportional to 21,737.56, 29,998.56 and 12,177.86

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Solution

The fourth proportional to 21,737.56, 29,998.56 and 12,177.86 is: 16,805.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,737.56 : 29,998.56 = 12,177.86 : x
  2. Step 2: Convert to fraction form
    21,737.56/29,998.56 = 12,177.86/x
  3. Step 3: Cross multiply
    21,737.56x = 29,998.56 × 12,177.86
  4. Step 4: Simplify right side
    21,737.56x = 365,318,263.88
  5. Step 5: Solve for x
    x = 365,318,263.88/21,737.56
  6. Step 6: Final answer
    x = 16,805.85

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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.