Home / 19,965.32-29,948.50-5,174.12

Finding the Fourth Proportional to 19,965.32, 29,948.50 and 5,174.12

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Solution

The fourth proportional to 19,965.32, 29,948.50 and 5,174.12 is: 7,761.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,965.32 : 29,948.50 = 5,174.12 : x
  2. Step 2: Convert to fraction form
    19,965.32/29,948.50 = 5,174.12/x
  3. Step 3: Cross multiply
    19,965.32x = 29,948.50 × 5,174.12
  4. Step 4: Simplify right side
    19,965.32x = 154,957,132.82
  5. Step 5: Solve for x
    x = 154,957,132.82/19,965.32
  6. Step 6: Final answer
    x = 7,761.31

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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.