Home / 21,942.60-32,895.36-8,787.76

Finding the Fourth Proportional to 21,942.60, 32,895.36 and 8,787.76

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Solution

The fourth proportional to 21,942.60, 32,895.36 and 8,787.76 is: 13,174.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,942.60 : 32,895.36 = 8,787.76 : x
  2. Step 2: Convert to fraction form
    21,942.60/32,895.36 = 8,787.76/x
  3. Step 3: Cross multiply
    21,942.60x = 32,895.36 × 8,787.76
  4. Step 4: Simplify right side
    21,942.60x = 289,076,528.79
  5. Step 5: Solve for x
    x = 289,076,528.79/21,942.60
  6. Step 6: Final answer
    x = 13,174.21

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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.