Home / 23,540.76-32,486.40-12,930.30

Finding the Fourth Proportional to 23,540.76, 32,486.40 and 12,930.30

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Solution

The fourth proportional to 23,540.76, 32,486.40 and 12,930.30 is: 17,843.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,540.76 : 32,486.40 = 12,930.30 : x
  2. Step 2: Convert to fraction form
    23,540.76/32,486.40 = 12,930.30/x
  3. Step 3: Cross multiply
    23,540.76x = 32,486.40 × 12,930.30
  4. Step 4: Simplify right side
    23,540.76x = 420,058,897.92
  5. Step 5: Solve for x
    x = 420,058,897.92/23,540.76
  6. Step 6: Final answer
    x = 17,843.90

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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.