Home / 31,189.77-43,042.02-17,042.91

Finding the Fourth Proportional to 31,189.77, 43,042.02 and 17,042.91

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Solution

The fourth proportional to 31,189.77, 43,042.02 and 17,042.91 is: 23,519.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,189.77 : 43,042.02 = 17,042.91 : x
  2. Step 2: Convert to fraction form
    31,189.77/43,042.02 = 17,042.91/x
  3. Step 3: Cross multiply
    31,189.77x = 43,042.02 × 17,042.91
  4. Step 4: Simplify right side
    31,189.77x = 733,561,273.08
  5. Step 5: Solve for x
    x = 733,561,273.08/31,189.77
  6. Step 6: Final answer
    x = 23,519.29

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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.