Home / 31,306.03-43,205.88-17,879.20

Finding the Fourth Proportional to 31,306.03, 43,205.88 and 17,879.20

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Solution

The fourth proportional to 31,306.03, 43,205.88 and 17,879.20 is: 24,675.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,306.03 : 43,205.88 = 17,879.20 : x
  2. Step 2: Convert to fraction form
    31,306.03/43,205.88 = 17,879.20/x
  3. Step 3: Cross multiply
    31,306.03x = 43,205.88 × 17,879.20
  4. Step 4: Simplify right side
    31,306.03x = 772,486,569.70
  5. Step 5: Solve for x
    x = 772,486,569.70/31,306.03
  6. Step 6: Final answer
    x = 24,675.33

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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.