Home / 20,356.86-30,535.31-5,565.90

Finding the Fourth Proportional to 20,356.86, 30,535.31 and 5,565.90

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Solution

The fourth proportional to 20,356.86, 30,535.31 and 5,565.90 is: 8,348.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,356.86 : 30,535.31 = 5,565.90 : x
  2. Step 2: Convert to fraction form
    20,356.86/30,535.31 = 5,565.90/x
  3. Step 3: Cross multiply
    20,356.86x = 30,535.31 × 5,565.90
  4. Step 4: Simplify right side
    20,356.86x = 169,956,481.93
  5. Step 5: Solve for x
    x = 169,956,481.93/20,356.86
  6. Step 6: Final answer
    x = 8,348.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.