Home / 20,568.24-28,382.04-11,616.72

Finding the Fourth Proportional to 20,568.24, 28,382.04 and 11,616.72

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Solution

The fourth proportional to 20,568.24, 28,382.04 and 11,616.72 is: 16,029.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568.24 : 28,382.04 = 11,616.72 : x
  2. Step 2: Convert to fraction form
    20,568.24/28,382.04 = 11,616.72/x
  3. Step 3: Cross multiply
    20,568.24x = 28,382.04 × 11,616.72
  4. Step 4: Simplify right side
    20,568.24x = 329,706,211.71
  5. Step 5: Solve for x
    x = 329,706,211.71/20,568.24
  6. Step 6: Final answer
    x = 16,029.87

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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.