Home / 31,590.14-43,575.18-18,834.95

Finding the Fourth Proportional to 31,590.14, 43,575.18 and 18,834.95

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Solution

The fourth proportional to 31,590.14, 43,575.18 and 18,834.95 is: 25,980.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,590.14 : 43,575.18 = 18,834.95 : x
  2. Step 2: Convert to fraction form
    31,590.14/43,575.18 = 18,834.95/x
  3. Step 3: Cross multiply
    31,590.14x = 43,575.18 × 18,834.95
  4. Step 4: Simplify right side
    31,590.14x = 820,736,336.54
  5. Step 5: Solve for x
    x = 820,736,336.54/31,590.14
  6. Step 6: Final answer
    x = 25,980.78

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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.