Home / 28,433.12-39,245.92-16,499.12

Finding the Fourth Proportional to 28,433.12, 39,245.92 and 16,499.12

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Solution

The fourth proportional to 28,433.12, 39,245.92 and 16,499.12 is: 22,773.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,433.12 : 39,245.92 = 16,499.12 : x
  2. Step 2: Convert to fraction form
    28,433.12/39,245.92 = 16,499.12/x
  3. Step 3: Cross multiply
    28,433.12x = 39,245.92 × 16,499.12
  4. Step 4: Simplify right side
    28,433.12x = 647,523,143.59
  5. Step 5: Solve for x
    x = 647,523,143.59/28,433.12
  6. Step 6: Final answer
    x = 22,773.55

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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.