Home / 20,893.74-31,340.21-5,098.88

Finding the Fourth Proportional to 20,893.74, 31,340.21 and 5,098.88

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Solution

The fourth proportional to 20,893.74, 31,340.21 and 5,098.88 is: 7,648.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,893.74 : 31,340.21 = 5,098.88 : x
  2. Step 2: Convert to fraction form
    20,893.74/31,340.21 = 5,098.88/x
  3. Step 3: Cross multiply
    20,893.74x = 31,340.21 × 5,098.88
  4. Step 4: Simplify right side
    20,893.74x = 159,799,787.77
  5. Step 5: Solve for x
    x = 159,799,787.77/20,893.74
  6. Step 6: Final answer
    x = 7,648.21

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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.