Home / 31,253.76-43,129.44-17,107.20

Finding the Fourth Proportional to 31,253.76, 43,129.44 and 17,107.20

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Solution

The fourth proportional to 31,253.76, 43,129.44 and 17,107.20 is: 23,607.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,253.76 : 43,129.44 = 17,107.20 : x
  2. Step 2: Convert to fraction form
    31,253.76/43,129.44 = 17,107.20/x
  3. Step 3: Cross multiply
    31,253.76x = 43,129.44 × 17,107.20
  4. Step 4: Simplify right side
    31,253.76x = 737,823,955.97
  5. Step 5: Solve for x
    x = 737,823,955.97/31,253.76
  6. Step 6: Final answer
    x = 23,607.53

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Half scale
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Double scale
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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.