Home / 31,382.28-43,307.59-17,042.11

Finding the Fourth Proportional to 31,382.28, 43,307.59 and 17,042.11

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Solution

The fourth proportional to 31,382.28, 43,307.59 and 17,042.11 is: 23,518.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,382.28 : 43,307.59 = 17,042.11 : x
  2. Step 2: Convert to fraction form
    31,382.28/43,307.59 = 17,042.11/x
  3. Step 3: Cross multiply
    31,382.28x = 43,307.59 × 17,042.11
  4. Step 4: Simplify right side
    31,382.28x = 738,052,789.37
  5. Step 5: Solve for x
    x = 738,052,789.37/31,382.28
  6. Step 6: Final answer
    x = 23,518.14

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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.