Home / 20,153.67-30,231.18-9,060.39

Finding the Fourth Proportional to 20,153.67, 30,231.18 and 9,060.39

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Solution

The fourth proportional to 20,153.67, 30,231.18 and 9,060.39 is: 13,590.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,153.67 : 30,231.18 = 9,060.39 : x
  2. Step 2: Convert to fraction form
    20,153.67/30,231.18 = 9,060.39/x
  3. Step 3: Cross multiply
    20,153.67x = 30,231.18 × 9,060.39
  4. Step 4: Simplify right side
    20,153.67x = 273,906,280.96
  5. Step 5: Solve for x
    x = 273,906,280.96/20,153.67
  6. Step 6: Final answer
    x = 13,590.89

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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.