Home / 31,424.13-43,352.97-17,988.17

Finding the Fourth Proportional to 31,424.13, 43,352.97 and 17,988.17

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Solution

The fourth proportional to 31,424.13, 43,352.97 and 17,988.17 is: 24,816.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,424.13 : 43,352.97 = 17,988.17 : x
  2. Step 2: Convert to fraction form
    31,424.13/43,352.97 = 17,988.17/x
  3. Step 3: Cross multiply
    31,424.13x = 43,352.97 × 17,988.17
  4. Step 4: Simplify right side
    31,424.13x = 779,840,377.60
  5. Step 5: Solve for x
    x = 779,840,377.60/31,424.13
  6. Step 6: Final answer
    x = 24,816.61

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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.