Home / 31,565.56-43,566.11-18,819.57

Finding the Fourth Proportional to 31,565.56, 43,566.11 and 18,819.57

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Solution

The fourth proportional to 31,565.56, 43,566.11 and 18,819.57 is: 25,974.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,565.56 : 43,566.11 = 18,819.57 : x
  2. Step 2: Convert to fraction form
    31,565.56/43,566.11 = 18,819.57/x
  3. Step 3: Cross multiply
    31,565.56x = 43,566.11 × 18,819.57
  4. Step 4: Simplify right side
    31,565.56x = 819,895,456.77
  5. Step 5: Solve for x
    x = 819,895,456.77/31,565.56
  6. Step 6: Final answer
    x = 25,974.37

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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.