Home / 25,189.44-37,781.28-6,720

Finding the Fourth Proportional to 25,189.44, 37,781.28 and 6,720

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Solution

The fourth proportional to 25,189.44, 37,781.28 and 6,720 is: 10,079.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,189.44 : 37,781.28 = 6,720 : x
  2. Step 2: Convert to fraction form
    25,189.44/37,781.28 = 6,720/x
  3. Step 3: Cross multiply
    25,189.44x = 37,781.28 × 6,720
  4. Step 4: Simplify right side
    25,189.44x = 253,890,201.60
  5. Step 5: Solve for x
    x = 253,890,201.60/25,189.44
  6. Step 6: Final answer
    x = 10,079.23

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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.