Home / 20,432.56-30,650.61-5,641.48

Finding the Fourth Proportional to 20,432.56, 30,650.61 and 5,641.48

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Solution

The fourth proportional to 20,432.56, 30,650.61 and 5,641.48 is: 8,462.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,432.56 : 30,650.61 = 5,641.48 : x
  2. Step 2: Convert to fraction form
    20,432.56/30,650.61 = 5,641.48/x
  3. Step 3: Cross multiply
    20,432.56x = 30,650.61 × 5,641.48
  4. Step 4: Simplify right side
    20,432.56x = 172,914,803.30
  5. Step 5: Solve for x
    x = 172,914,803.30/20,432.56
  6. Step 6: Final answer
    x = 8,462.71

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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.