Home / 21,474.82-29,632.00-12,275.70

Finding the Fourth Proportional to 21,474.82, 29,632.00 and 12,275.70

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Solution

The fourth proportional to 21,474.82, 29,632.00 and 12,275.70 is: 16,938.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,474.82 : 29,632.00 = 12,275.70 : x
  2. Step 2: Convert to fraction form
    21,474.82/29,632.00 = 12,275.70/x
  3. Step 3: Cross multiply
    21,474.82x = 29,632.00 × 12,275.70
  4. Step 4: Simplify right side
    21,474.82x = 363,753,481.02
  5. Step 5: Solve for x
    x = 363,753,481.02/21,474.82
  6. Step 6: Final answer
    x = 16,938.61

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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.