Home / 20,186.16-30,280.05-9,092.40

Finding the Fourth Proportional to 20,186.16, 30,280.05 and 9,092.40

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Solution

The fourth proportional to 20,186.16, 30,280.05 and 9,092.40 is: 13,638.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186.16 : 30,280.05 = 9,092.40 : x
  2. Step 2: Convert to fraction form
    20,186.16/30,280.05 = 9,092.40/x
  3. Step 3: Cross multiply
    20,186.16x = 30,280.05 × 9,092.40
  4. Step 4: Simplify right side
    20,186.16x = 275,318,326.62
  5. Step 5: Solve for x
    x = 275,318,326.62/20,186.16
  6. Step 6: Final answer
    x = 13,638.96

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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.