Home / 31,834.40-43,934.45-18,404.85

Finding the Fourth Proportional to 31,834.40, 43,934.45 and 18,404.85

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Solution

The fourth proportional to 31,834.40, 43,934.45 and 18,404.85 is: 25,400.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,834.40 : 43,934.45 = 18,404.85 : x
  2. Step 2: Convert to fraction form
    31,834.40/43,934.45 = 18,404.85/x
  3. Step 3: Cross multiply
    31,834.40x = 43,934.45 × 18,404.85
  4. Step 4: Simplify right side
    31,834.40x = 808,607,138.34
  5. Step 5: Solve for x
    x = 808,607,138.34/31,834.40
  6. Step 6: Final answer
    x = 25,400.42

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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.