Home / 28,982.56-39,956.88-18,891.04

Finding the Fourth Proportional to 28,982.56, 39,956.88 and 18,891.04

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Solution

The fourth proportional to 28,982.56, 39,956.88 and 18,891.04 is: 26,044.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,982.56 : 39,956.88 = 18,891.04 : x
  2. Step 2: Convert to fraction form
    28,982.56/39,956.88 = 18,891.04/x
  3. Step 3: Cross multiply
    28,982.56x = 39,956.88 × 18,891.04
  4. Step 4: Simplify right side
    28,982.56x = 754,827,018.36
  5. Step 5: Solve for x
    x = 754,827,018.36/28,982.56
  6. Step 6: Final answer
    x = 26,044.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.