Home / 31,447.28-43,398.36-17,299.76

Finding the Fourth Proportional to 31,447.28, 43,398.36 and 17,299.76

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Solution

The fourth proportional to 31,447.28, 43,398.36 and 17,299.76 is: 23,874.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,447.28 : 43,398.36 = 17,299.76 : x
  2. Step 2: Convert to fraction form
    31,447.28/43,398.36 = 17,299.76/x
  3. Step 3: Cross multiply
    31,447.28x = 43,398.36 × 17,299.76
  4. Step 4: Simplify right side
    31,447.28x = 750,781,212.39
  5. Step 5: Solve for x
    x = 750,781,212.39/31,447.28
  6. Step 6: Final answer
    x = 23,874.28

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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.