Home / 20,522.08-30,787.44-6,670

Finding the Fourth Proportional to 20,522.08, 30,787.44 and 6,670

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Solution

The fourth proportional to 20,522.08, 30,787.44 and 6,670 is: 10,006.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,522.08 : 30,787.44 = 6,670 : x
  2. Step 2: Convert to fraction form
    20,522.08/30,787.44 = 6,670/x
  3. Step 3: Cross multiply
    20,522.08x = 30,787.44 × 6,670
  4. Step 4: Simplify right side
    20,522.08x = 205,352,224.80
  5. Step 5: Solve for x
    x = 205,352,224.80/20,522.08
  6. Step 6: Final answer
    x = 10,006.40

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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.