Home / 31,447.28-43,398.40-17,301.20

Finding the Fourth Proportional to 31,447.28, 43,398.40 and 17,301.20

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Solution

The fourth proportional to 31,447.28, 43,398.40 and 17,301.20 is: 23,876.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,447.28 : 43,398.40 = 17,301.20 : x
  2. Step 2: Convert to fraction form
    31,447.28/43,398.40 = 17,301.20/x
  3. Step 3: Cross multiply
    31,447.28x = 43,398.40 × 17,301.20
  4. Step 4: Simplify right side
    31,447.28x = 750,844,398.08
  5. Step 5: Solve for x
    x = 750,844,398.08/31,447.28
  6. Step 6: Final answer
    x = 23,876.29

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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.