Home / 31,534.68-43,517.81-17,387.57

Finding the Fourth Proportional to 31,534.68, 43,517.81 and 17,387.57

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Solution

The fourth proportional to 31,534.68, 43,517.81 and 17,387.57 is: 23,994.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,534.68 : 43,517.81 = 17,387.57 : x
  2. Step 2: Convert to fraction form
    31,534.68/43,517.81 = 17,387.57/x
  3. Step 3: Cross multiply
    31,534.68x = 43,517.81 × 17,387.57
  4. Step 4: Simplify right side
    31,534.68x = 756,668,663.09
  5. Step 5: Solve for x
    x = 756,668,663.09/31,534.68
  6. Step 6: Final answer
    x = 23,994.81

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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.