Home / 21,787.48-32,650.98-11,378.44

Finding the Fourth Proportional to 21,787.48, 32,650.98 and 11,378.44

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Solution

The fourth proportional to 21,787.48, 32,650.98 and 11,378.44 is: 17,051.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,787.48 : 32,650.98 = 11,378.44 : x
  2. Step 2: Convert to fraction form
    21,787.48/32,650.98 = 11,378.44/x
  3. Step 3: Cross multiply
    21,787.48x = 32,650.98 × 11,378.44
  4. Step 4: Simplify right side
    21,787.48x = 371,517,216.87
  5. Step 5: Solve for x
    x = 371,517,216.87/21,787.48
  6. Step 6: Final answer
    x = 17,051.87

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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.