Home / 20,616.10-28,450.27-11,184.66

Finding the Fourth Proportional to 20,616.10, 28,450.27 and 11,184.66

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Solution

The fourth proportional to 20,616.10, 28,450.27 and 11,184.66 is: 15,434.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616.10 : 28,450.27 = 11,184.66 : x
  2. Step 2: Convert to fraction form
    20,616.10/28,450.27 = 11,184.66/x
  3. Step 3: Cross multiply
    20,616.10x = 28,450.27 × 11,184.66
  4. Step 4: Simplify right side
    20,616.10x = 318,206,596.86
  5. Step 5: Solve for x
    x = 318,206,596.86/20,616.10
  6. Step 6: Final answer
    x = 15,434.86

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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.