Home / 28,820.27-39,765.12-16,245.02

Finding the Fourth Proportional to 28,820.27, 39,765.12 and 16,245.02

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Solution

The fourth proportional to 28,820.27, 39,765.12 and 16,245.02 is: 22,414.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,820.27 : 39,765.12 = 16,245.02 : x
  2. Step 2: Convert to fraction form
    28,820.27/39,765.12 = 16,245.02/x
  3. Step 3: Cross multiply
    28,820.27x = 39,765.12 × 16,245.02
  4. Step 4: Simplify right side
    28,820.27x = 645,985,169.70
  5. Step 5: Solve for x
    x = 645,985,169.70/28,820.27
  6. Step 6: Final answer
    x = 22,414.27

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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.