Home / 23,160.28-31,961.14-12,549.88

Finding the Fourth Proportional to 23,160.28, 31,961.14 and 12,549.88

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Solution

The fourth proportional to 23,160.28, 31,961.14 and 12,549.88 is: 17,318.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,160.28 : 31,961.14 = 12,549.88 : x
  2. Step 2: Convert to fraction form
    23,160.28/31,961.14 = 12,549.88/x
  3. Step 3: Cross multiply
    23,160.28x = 31,961.14 × 12,549.88
  4. Step 4: Simplify right side
    23,160.28x = 401,108,471.66
  5. Step 5: Solve for x
    x = 401,108,471.66/23,160.28
  6. Step 6: Final answer
    x = 17,318.81

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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.