Home / 21,920.16-32,885.10-10,227

Finding the Fourth Proportional to 21,920.16, 32,885.10 and 10,227

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Solution

The fourth proportional to 21,920.16, 32,885.10 and 10,227 is: 15,342.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,920.16 : 32,885.10 = 10,227 : x
  2. Step 2: Convert to fraction form
    21,920.16/32,885.10 = 10,227/x
  3. Step 3: Cross multiply
    21,920.16x = 32,885.10 × 10,227
  4. Step 4: Simplify right side
    21,920.16x = 336,315,917.70
  5. Step 5: Solve for x
    x = 336,315,917.70/21,920.16
  6. Step 6: Final answer
    x = 15,342.77

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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.