Home / 21,655.12-32,463.24-8,516.92

Finding the Fourth Proportional to 21,655.12, 32,463.24 and 8,516.92

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Solution

The fourth proportional to 21,655.12, 32,463.24 and 8,516.92 is: 12,767.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,655.12 : 32,463.24 = 8,516.92 : x
  2. Step 2: Convert to fraction form
    21,655.12/32,463.24 = 8,516.92/x
  3. Step 3: Cross multiply
    21,655.12x = 32,463.24 × 8,516.92
  4. Step 4: Simplify right side
    21,655.12x = 276,486,818.02
  5. Step 5: Solve for x
    x = 276,486,818.02/21,655.12
  6. Step 6: Final answer
    x = 12,767.73

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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.