Home / 31,288.78-43,179.38-17,862.22

Finding the Fourth Proportional to 31,288.78, 43,179.38 and 17,862.22

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Solution

The fourth proportional to 31,288.78, 43,179.38 and 17,862.22 is: 24,650.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,288.78 : 43,179.38 = 17,862.22 : x
  2. Step 2: Convert to fraction form
    31,288.78/43,179.38 = 17,862.22/x
  3. Step 3: Cross multiply
    31,288.78x = 43,179.38 × 17,862.22
  4. Step 4: Simplify right side
    31,288.78x = 771,279,585.02
  5. Step 5: Solve for x
    x = 771,279,585.02/31,288.78
  6. Step 6: Final answer
    x = 24,650.36

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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.