Home / 31,371.17-43,279.87-17,935.21

Finding the Fourth Proportional to 31,371.17, 43,279.87 and 17,935.21

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Solution

The fourth proportional to 31,371.17, 43,279.87 and 17,935.21 is: 24,743.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,371.17 : 43,279.87 = 17,935.21 : x
  2. Step 2: Convert to fraction form
    31,371.17/43,279.87 = 17,935.21/x
  3. Step 3: Cross multiply
    31,371.17x = 43,279.87 × 17,935.21
  4. Step 4: Simplify right side
    31,371.17x = 776,233,251.15
  5. Step 5: Solve for x
    x = 776,233,251.15/31,371.17
  6. Step 6: Final answer
    x = 24,743.52

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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.