Home / 21,327.77-32,011.29-10,805.11

Finding the Fourth Proportional to 21,327.77, 32,011.29 and 10,805.11

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Solution

The fourth proportional to 21,327.77, 32,011.29 and 10,805.11 is: 16,217.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,327.77 : 32,011.29 = 10,805.11 : x
  2. Step 2: Convert to fraction form
    21,327.77/32,011.29 = 10,805.11/x
  3. Step 3: Cross multiply
    21,327.77x = 32,011.29 × 10,805.11
  4. Step 4: Simplify right side
    21,327.77x = 345,885,429.16
  5. Step 5: Solve for x
    x = 345,885,429.16/21,327.77
  6. Step 6: Final answer
    x = 16,217.61

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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.