Home / 19,979.93-29,961.36-7,491.30

Finding the Fourth Proportional to 19,979.93, 29,961.36 and 7,491.30

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Solution

The fourth proportional to 19,979.93, 29,961.36 and 7,491.30 is: 11,233.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,979.93 : 29,961.36 = 7,491.30 : x
  2. Step 2: Convert to fraction form
    19,979.93/29,961.36 = 7,491.30/x
  3. Step 3: Cross multiply
    19,979.93x = 29,961.36 × 7,491.30
  4. Step 4: Simplify right side
    19,979.93x = 224,449,592.35
  5. Step 5: Solve for x
    x = 224,449,592.35/19,979.93
  6. Step 6: Final answer
    x = 11,233.75

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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.