Home / 31,590.52-43,579.17-18,834.71

Finding the Fourth Proportional to 31,590.52, 43,579.17 and 18,834.71

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Solution

The fourth proportional to 31,590.52, 43,579.17 and 18,834.71 is: 25,982.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,590.52 : 43,579.17 = 18,834.71 : x
  2. Step 2: Convert to fraction form
    31,590.52/43,579.17 = 18,834.71/x
  3. Step 3: Cross multiply
    31,590.52x = 43,579.17 × 18,834.71
  4. Step 4: Simplify right side
    31,590.52x = 820,800,811.09
  5. Step 5: Solve for x
    x = 820,800,811.09/31,590.52
  6. Step 6: Final answer
    x = 25,982.51

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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.