Home / 40,327.86-60,439.23-20,589.78

Finding the Fourth Proportional to 40,327.86, 60,439.23 and 20,589.78

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Solution

The fourth proportional to 40,327.86, 60,439.23 and 20,589.78 is: 30,857.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,327.86 : 60,439.23 = 20,589.78 : x
  2. Step 2: Convert to fraction form
    40,327.86/60,439.23 = 20,589.78/x
  3. Step 3: Cross multiply
    40,327.86x = 60,439.23 × 20,589.78
  4. Step 4: Simplify right side
    40,327.86x = 1,244,430,449.07
  5. Step 5: Solve for x
    x = 1,244,430,449.07/40,327.86
  6. Step 6: Final answer
    x = 30,857.83

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1.5x scale

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.