Home / 21,810.60-32,721.56-6,229.44

Finding the Fourth Proportional to 21,810.60, 32,721.56 and 6,229.44

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Solution

The fourth proportional to 21,810.60, 32,721.56 and 6,229.44 is: 9,345.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,810.60 : 32,721.56 = 6,229.44 : x
  2. Step 2: Convert to fraction form
    21,810.60/32,721.56 = 6,229.44/x
  3. Step 3: Cross multiply
    21,810.60x = 32,721.56 × 6,229.44
  4. Step 4: Simplify right side
    21,810.60x = 203,836,994.73
  5. Step 5: Solve for x
    x = 203,836,994.73/21,810.60
  6. Step 6: Final answer
    x = 9,345.78

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1.5x scale

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.