Home / 22,486.14-31,034.61-21,489.66

Finding the Fourth Proportional to 22,486.14, 31,034.61 and 21,489.66

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Solution

The fourth proportional to 22,486.14, 31,034.61 and 21,489.66 is: 29,659.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,486.14 : 31,034.61 = 21,489.66 : x
  2. Step 2: Convert to fraction form
    22,486.14/31,034.61 = 21,489.66/x
  3. Step 3: Cross multiply
    22,486.14x = 31,034.61 × 21,489.66
  4. Step 4: Simplify right side
    22,486.14x = 666,923,217.13
  5. Step 5: Solve for x
    x = 666,923,217.13/22,486.14
  6. Step 6: Final answer
    x = 29,659.30

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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.