Home / 20,720.24-31,092.24-7,570.88

Finding the Fourth Proportional to 20,720.24, 31,092.24 and 7,570.88

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Solution

The fourth proportional to 20,720.24, 31,092.24 and 7,570.88 is: 11,360.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,720.24 : 31,092.24 = 7,570.88 : x
  2. Step 2: Convert to fraction form
    20,720.24/31,092.24 = 7,570.88/x
  3. Step 3: Cross multiply
    20,720.24x = 31,092.24 × 7,570.88
  4. Step 4: Simplify right side
    20,720.24x = 235,395,617.97
  5. Step 5: Solve for x
    x = 235,395,617.97/20,720.24
  6. Step 6: Final answer
    x = 11,360.66

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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.