Home / 20,411.06-30,616.58-5,620.12

Finding the Fourth Proportional to 20,411.06, 30,616.58 and 5,620.12

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Solution

The fourth proportional to 20,411.06, 30,616.58 and 5,620.12 is: 8,430.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,411.06 : 30,616.58 = 5,620.12 : x
  2. Step 2: Convert to fraction form
    20,411.06/30,616.58 = 5,620.12/x
  3. Step 3: Cross multiply
    20,411.06x = 30,616.58 × 5,620.12
  4. Step 4: Simplify right side
    20,411.06x = 172,068,791.10
  5. Step 5: Solve for x
    x = 172,068,791.10/20,411.06
  6. Step 6: Final answer
    x = 8,430.18

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.