Home / 20,672.92-31,009.02-5,881.96

Finding the Fourth Proportional to 20,672.92, 31,009.02 and 5,881.96

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Solution

The fourth proportional to 20,672.92, 31,009.02 and 5,881.96 is: 8,822.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672.92 : 31,009.02 = 5,881.96 : x
  2. Step 2: Convert to fraction form
    20,672.92/31,009.02 = 5,881.96/x
  3. Step 3: Cross multiply
    20,672.92x = 31,009.02 × 5,881.96
  4. Step 4: Simplify right side
    20,672.92x = 182,393,815.28
  5. Step 5: Solve for x
    x = 182,393,815.28/20,672.92
  6. Step 6: Final answer
    x = 8,822.84

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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.