Home / 22,118.40-33,124.19-13,787.96

Finding the Fourth Proportional to 22,118.40, 33,124.19 and 13,787.96

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Solution

The fourth proportional to 22,118.40, 33,124.19 and 13,787.96 is: 20,648.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,118.40 : 33,124.19 = 13,787.96 : x
  2. Step 2: Convert to fraction form
    22,118.40/33,124.19 = 13,787.96/x
  3. Step 3: Cross multiply
    22,118.40x = 33,124.19 × 13,787.96
  4. Step 4: Simplify right side
    22,118.40x = 456,714,772.19
  5. Step 5: Solve for x
    x = 456,714,772.19/22,118.40
  6. Step 6: Final answer
    x = 20,648.64

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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.