Home / 31,387.13-43,314.54-17,240.27

Finding the Fourth Proportional to 31,387.13, 43,314.54 and 17,240.27

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Solution

The fourth proportional to 31,387.13, 43,314.54 and 17,240.27 is: 23,791.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,387.13 : 43,314.54 = 17,240.27 : x
  2. Step 2: Convert to fraction form
    31,387.13/43,314.54 = 17,240.27/x
  3. Step 3: Cross multiply
    31,387.13x = 43,314.54 × 17,240.27
  4. Step 4: Simplify right side
    31,387.13x = 746,754,364.53
  5. Step 5: Solve for x
    x = 746,754,364.53/31,387.13
  6. Step 6: Final answer
    x = 23,791.74

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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.