Home / 19,976.12-29,956.38-7,489.33

Finding the Fourth Proportional to 19,976.12, 29,956.38 and 7,489.33

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Solution

The fourth proportional to 19,976.12, 29,956.38 and 7,489.33 is: 11,231.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,976.12 : 29,956.38 = 7,489.33 : x
  2. Step 2: Convert to fraction form
    19,976.12/29,956.38 = 7,489.33/x
  3. Step 3: Cross multiply
    19,976.12x = 29,956.38 × 7,489.33
  4. Step 4: Simplify right side
    19,976.12x = 224,353,140.53
  5. Step 5: Solve for x
    x = 224,353,140.53/19,976.12
  6. Step 6: Final answer
    x = 11,231.07

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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.