Home / 40,242.76-60,318.96-18,905.92

Finding the Fourth Proportional to 40,242.76, 60,318.96 and 18,905.92

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Solution

The fourth proportional to 40,242.76, 60,318.96 and 18,905.92 is: 28,337.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,242.76 : 60,318.96 = 18,905.92 : x
  2. Step 2: Convert to fraction form
    40,242.76/60,318.96 = 18,905.92/x
  3. Step 3: Cross multiply
    40,242.76x = 60,318.96 × 18,905.92
  4. Step 4: Simplify right side
    40,242.76x = 1,140,385,432.24
  5. Step 5: Solve for x
    x = 1,140,385,432.24/40,242.76
  6. Step 6: Final answer
    x = 28,337.65

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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.