Home / 23,391.09-32,279.82-12,780.75

Finding the Fourth Proportional to 23,391.09, 32,279.82 and 12,780.75

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Solution

The fourth proportional to 23,391.09, 32,279.82 and 12,780.75 is: 17,637.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,391.09 : 32,279.82 = 12,780.75 : x
  2. Step 2: Convert to fraction form
    23,391.09/32,279.82 = 12,780.75/x
  3. Step 3: Cross multiply
    23,391.09x = 32,279.82 × 12,780.75
  4. Step 4: Simplify right side
    23,391.09x = 412,560,309.47
  5. Step 5: Solve for x
    x = 412,560,309.47/23,391.09
  6. Step 6: Final answer
    x = 17,637.50

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Half scale
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Double scale
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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.