Home / 19,997.10-29,999.88-7,517.24

Finding the Fourth Proportional to 19,997.10, 29,999.88 and 7,517.24

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Solution

The fourth proportional to 19,997.10, 29,999.88 and 7,517.24 is: 11,277.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,997.10 : 29,999.88 = 7,517.24 : x
  2. Step 2: Convert to fraction form
    19,997.10/29,999.88 = 7,517.24/x
  3. Step 3: Cross multiply
    19,997.10x = 29,999.88 × 7,517.24
  4. Step 4: Simplify right side
    19,997.10x = 225,516,297.93
  5. Step 5: Solve for x
    x = 225,516,297.93/19,997.10
  6. Step 6: Final answer
    x = 11,277.45

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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.