Home / 21,876.60-32,777.10-10,165.80

Finding the Fourth Proportional to 21,876.60, 32,777.10 and 10,165.80

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Solution

The fourth proportional to 21,876.60, 32,777.10 and 10,165.80 is: 15,231.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,876.60 : 32,777.10 = 10,165.80 : x
  2. Step 2: Convert to fraction form
    21,876.60/32,777.10 = 10,165.80/x
  3. Step 3: Cross multiply
    21,876.60x = 32,777.10 × 10,165.80
  4. Step 4: Simplify right side
    21,876.60x = 333,205,443.18
  5. Step 5: Solve for x
    x = 333,205,443.18/21,876.60
  6. Step 6: Final answer
    x = 15,231.13

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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.