Home / 21,910.30-32,841.75-8,748.20

Finding the Fourth Proportional to 21,910.30, 32,841.75 and 8,748.20

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Solution

The fourth proportional to 21,910.30, 32,841.75 and 8,748.20 is: 13,112.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,910.30 : 32,841.75 = 8,748.20 : x
  2. Step 2: Convert to fraction form
    21,910.30/32,841.75 = 8,748.20/x
  3. Step 3: Cross multiply
    21,910.30x = 32,841.75 × 8,748.20
  4. Step 4: Simplify right side
    21,910.30x = 287,306,197.35
  5. Step 5: Solve for x
    x = 287,306,197.35/21,910.30
  6. Step 6: Final answer
    x = 13,112.84

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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.