Home / 21,842.10-32,787.45-12,000.60

Finding the Fourth Proportional to 21,842.10, 32,787.45 and 12,000.60

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Solution

The fourth proportional to 21,842.10, 32,787.45 and 12,000.60 is: 18,014.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,842.10 : 32,787.45 = 12,000.60 : x
  2. Step 2: Convert to fraction form
    21,842.10/32,787.45 = 12,000.60/x
  3. Step 3: Cross multiply
    21,842.10x = 32,787.45 × 12,000.60
  4. Step 4: Simplify right side
    21,842.10x = 393,469,072.47
  5. Step 5: Solve for x
    x = 393,469,072.47/21,842.10
  6. Step 6: Final answer
    x = 18,014.25

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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.