Home / 20,568.44-28,385.55-11,616.32

Finding the Fourth Proportional to 20,568.44, 28,385.55 and 11,616.32

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Solution

The fourth proportional to 20,568.44, 28,385.55 and 11,616.32 is: 16,031.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568.44 : 28,385.55 = 11,616.32 : x
  2. Step 2: Convert to fraction form
    20,568.44/28,385.55 = 11,616.32/x
  3. Step 3: Cross multiply
    20,568.44x = 28,385.55 × 11,616.32
  4. Step 4: Simplify right side
    20,568.44x = 329,735,490.25
  5. Step 5: Solve for x
    x = 329,735,490.25/20,568.44
  6. Step 6: Final answer
    x = 16,031.14

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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.