Home / 31,590.17-43,578.68-18,834.35

Finding the Fourth Proportional to 31,590.17, 43,578.68 and 18,834.35

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Solution

The fourth proportional to 31,590.17, 43,578.68 and 18,834.35 is: 25,982.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,590.17 : 43,578.68 = 18,834.35 : x
  2. Step 2: Convert to fraction form
    31,590.17/43,578.68 = 18,834.35/x
  3. Step 3: Cross multiply
    31,590.17x = 43,578.68 × 18,834.35
  4. Step 4: Simplify right side
    31,590.17x = 820,776,267.69
  5. Step 5: Solve for x
    x = 820,776,267.69/31,590.17
  6. Step 6: Final answer
    x = 25,982.02

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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.