Home / 22,519.49-31,076.56-12,447.71

Finding the Fourth Proportional to 22,519.49, 31,076.56 and 12,447.71

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Solution

The fourth proportional to 22,519.49, 31,076.56 and 12,447.71 is: 17,177.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,519.49 : 31,076.56 = 12,447.71 : x
  2. Step 2: Convert to fraction form
    22,519.49/31,076.56 = 12,447.71/x
  3. Step 3: Cross multiply
    22,519.49x = 31,076.56 × 12,447.71
  4. Step 4: Simplify right side
    22,519.49x = 386,831,825.97
  5. Step 5: Solve for x
    x = 386,831,825.97/22,519.49
  6. Step 6: Final answer
    x = 17,177.65

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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.