Home / 31,419.68-43,359.18-17,272.76

Finding the Fourth Proportional to 31,419.68, 43,359.18 and 17,272.76

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Solution

The fourth proportional to 31,419.68, 43,359.18 and 17,272.76 is: 23,836.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,419.68 : 43,359.18 = 17,272.76 : x
  2. Step 2: Convert to fraction form
    31,419.68/43,359.18 = 17,272.76/x
  3. Step 3: Cross multiply
    31,419.68x = 43,359.18 × 17,272.76
  4. Step 4: Simplify right side
    31,419.68x = 748,932,709.94
  5. Step 5: Solve for x
    x = 748,932,709.94/31,419.68
  6. Step 6: Final answer
    x = 23,836.42

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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.