Home / 23,189.19-31,966.20-18,144.65

Finding the Fourth Proportional to 23,189.19, 31,966.20 and 18,144.65

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Solution

The fourth proportional to 23,189.19, 31,966.20 and 18,144.65 is: 25,012.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,189.19 : 31,966.20 = 18,144.65 : x
  2. Step 2: Convert to fraction form
    23,189.19/31,966.20 = 18,144.65/x
  3. Step 3: Cross multiply
    23,189.19x = 31,966.20 × 18,144.65
  4. Step 4: Simplify right side
    23,189.19x = 580,015,590.75
  5. Step 5: Solve for x
    x = 580,015,590.75/23,189.19
  6. Step 6: Final answer
    x = 25,012.33

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Double scale
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Similar ratio
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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.