Home / 20,956.92-31,351.14-18,071.16

Finding the Fourth Proportional to 20,956.92, 31,351.14 and 18,071.16

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Solution

The fourth proportional to 20,956.92, 31,351.14 and 18,071.16 is: 27,034.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956.92 : 31,351.14 = 18,071.16 : x
  2. Step 2: Convert to fraction form
    20,956.92/31,351.14 = 18,071.16/x
  3. Step 3: Cross multiply
    20,956.92x = 31,351.14 × 18,071.16
  4. Step 4: Simplify right side
    20,956.92x = 566,551,467.12
  5. Step 5: Solve for x
    x = 566,551,467.12/20,956.92
  6. Step 6: Final answer
    x = 27,034.10

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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.