Home / 19,739.92-29,609.88-8,040.28

Finding the Fourth Proportional to 19,739.92, 29,609.88 and 8,040.28

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Solution

The fourth proportional to 19,739.92, 29,609.88 and 8,040.28 is: 12,060.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,739.92 : 29,609.88 = 8,040.28 : x
  2. Step 2: Convert to fraction form
    19,739.92/29,609.88 = 8,040.28/x
  3. Step 3: Cross multiply
    19,739.92x = 29,609.88 × 8,040.28
  4. Step 4: Simplify right side
    19,739.92x = 238,071,725.97
  5. Step 5: Solve for x
    x = 238,071,725.97/19,739.92
  6. Step 6: Final answer
    x = 12,060.42

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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.