Home / 21,910.70-32,842.36-8,748.61

Finding the Fourth Proportional to 21,910.70, 32,842.36 and 8,748.61

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Solution

The fourth proportional to 21,910.70, 32,842.36 and 8,748.61 is: 13,113.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,910.70 : 32,842.36 = 8,748.61 : x
  2. Step 2: Convert to fraction form
    21,910.70/32,842.36 = 8,748.61/x
  3. Step 3: Cross multiply
    21,910.70x = 32,842.36 × 8,748.61
  4. Step 4: Simplify right side
    21,910.70x = 287,324,927.95
  5. Step 5: Solve for x
    x = 287,324,927.95/21,910.70
  6. Step 6: Final answer
    x = 13,113.45

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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.