Home / 21,845.12-32,753.76-10,161.92

Finding the Fourth Proportional to 21,845.12, 32,753.76 and 10,161.92

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Solution

The fourth proportional to 21,845.12, 32,753.76 and 10,161.92 is: 15,236.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,845.12 : 32,753.76 = 10,161.92 : x
  2. Step 2: Convert to fraction form
    21,845.12/32,753.76 = 10,161.92/x
  3. Step 3: Cross multiply
    21,845.12x = 32,753.76 × 10,161.92
  4. Step 4: Simplify right side
    21,845.12x = 332,841,088.82
  5. Step 5: Solve for x
    x = 332,841,088.82/21,845.12
  6. Step 6: Final answer
    x = 15,236.40

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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.