Home / 31,348.62-43,218.38-22,380.53

Finding the Fourth Proportional to 31,348.62, 43,218.38 and 22,380.53

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Solution

The fourth proportional to 31,348.62, 43,218.38 and 22,380.53 is: 30,854.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,348.62 : 43,218.38 = 22,380.53 : x
  2. Step 2: Convert to fraction form
    31,348.62/43,218.38 = 22,380.53/x
  3. Step 3: Cross multiply
    31,348.62x = 43,218.38 × 22,380.53
  4. Step 4: Simplify right side
    31,348.62x = 967,249,922.15
  5. Step 5: Solve for x
    x = 967,249,922.15/31,348.62
  6. Step 6: Final answer
    x = 30,854.63

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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.