Home / 19,971.28-29,956.92-6,118.48

Finding the Fourth Proportional to 19,971.28, 29,956.92 and 6,118.48

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Solution

The fourth proportional to 19,971.28, 29,956.92 and 6,118.48 is: 9,177.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,971.28 : 29,956.92 = 6,118.48 : x
  2. Step 2: Convert to fraction form
    19,971.28/29,956.92 = 6,118.48/x
  3. Step 3: Cross multiply
    19,971.28x = 29,956.92 × 6,118.48
  4. Step 4: Simplify right side
    19,971.28x = 183,290,815.88
  5. Step 5: Solve for x
    x = 183,290,815.88/19,971.28
  6. Step 6: Final answer
    x = 9,177.72

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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.