Home / 19,979.28-29,964.06-9,448.88

Finding the Fourth Proportional to 19,979.28, 29,964.06 and 9,448.88

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Solution

The fourth proportional to 19,979.28, 29,964.06 and 9,448.88 is: 14,171.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,979.28 : 29,964.06 = 9,448.88 : x
  2. Step 2: Convert to fraction form
    19,979.28/29,964.06 = 9,448.88/x
  3. Step 3: Cross multiply
    19,979.28x = 29,964.06 × 9,448.88
  4. Step 4: Simplify right side
    19,979.28x = 283,126,657.43
  5. Step 5: Solve for x
    x = 283,126,657.43/19,979.28
  6. Step 6: Final answer
    x = 14,171.01

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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.