Home / 31,419.66-43,359.40-17,272.20

Finding the Fourth Proportional to 31,419.66, 43,359.40 and 17,272.20

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Solution

The fourth proportional to 31,419.66, 43,359.40 and 17,272.20 is: 23,835.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,419.66 : 43,359.40 = 17,272.20 : x
  2. Step 2: Convert to fraction form
    31,419.66/43,359.40 = 17,272.20/x
  3. Step 3: Cross multiply
    31,419.66x = 43,359.40 × 17,272.20
  4. Step 4: Simplify right side
    31,419.66x = 748,912,228.68
  5. Step 5: Solve for x
    x = 748,912,228.68/31,419.66
  6. Step 6: Final answer
    x = 23,835.78

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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.