Home / 20,523.96-28,321.02-12,568.44

Finding the Fourth Proportional to 20,523.96, 28,321.02 and 12,568.44

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Solution

The fourth proportional to 20,523.96, 28,321.02 and 12,568.44 is: 17,343.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,523.96 : 28,321.02 = 12,568.44 : x
  2. Step 2: Convert to fraction form
    20,523.96/28,321.02 = 12,568.44/x
  3. Step 3: Cross multiply
    20,523.96x = 28,321.02 × 12,568.44
  4. Step 4: Simplify right side
    20,523.96x = 355,951,040.61
  5. Step 5: Solve for x
    x = 355,951,040.61/20,523.96
  6. Step 6: Final answer
    x = 17,343.20

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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.