Home / 20,343.02-28,074.93-11,847.79

Finding the Fourth Proportional to 20,343.02, 28,074.93 and 11,847.79

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Solution

The fourth proportional to 20,343.02, 28,074.93 and 11,847.79 is: 16,350.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,343.02 : 28,074.93 = 11,847.79 : x
  2. Step 2: Convert to fraction form
    20,343.02/28,074.93 = 11,847.79/x
  3. Step 3: Cross multiply
    20,343.02x = 28,074.93 × 11,847.79
  4. Step 4: Simplify right side
    20,343.02x = 332,625,874.90
  5. Step 5: Solve for x
    x = 332,625,874.90/20,343.02
  6. Step 6: Final answer
    x = 16,350.86

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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.