Home / 19,979.07-29,947.53-6,648.48

Finding the Fourth Proportional to 19,979.07, 29,947.53 and 6,648.48

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Solution

The fourth proportional to 19,979.07, 29,947.53 and 6,648.48 is: 9,965.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,979.07 : 29,947.53 = 6,648.48 : x
  2. Step 2: Convert to fraction form
    19,979.07/29,947.53 = 6,648.48/x
  3. Step 3: Cross multiply
    19,979.07x = 29,947.53 × 6,648.48
  4. Step 4: Simplify right side
    19,979.07x = 199,105,554.25
  5. Step 5: Solve for x
    x = 199,105,554.25/19,979.07
  6. Step 6: Final answer
    x = 9,965.71

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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.