Home / 31,757.13-43,821.68-18,332.71

Finding the Fourth Proportional to 31,757.13, 43,821.68 and 18,332.71

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Solution

The fourth proportional to 31,757.13, 43,821.68 and 18,332.71 is: 25,297.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,757.13 : 43,821.68 = 18,332.71 : x
  2. Step 2: Convert to fraction form
    31,757.13/43,821.68 = 18,332.71/x
  3. Step 3: Cross multiply
    31,757.13x = 43,821.68 × 18,332.71
  4. Step 4: Simplify right side
    31,757.13x = 803,370,151.15
  5. Step 5: Solve for x
    x = 803,370,151.15/31,757.13
  6. Step 6: Final answer
    x = 25,297.32

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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.