Home / 20,314.38-30,474.03-7,164.06

Finding the Fourth Proportional to 20,314.38, 30,474.03 and 7,164.06

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Solution

The fourth proportional to 20,314.38, 30,474.03 and 7,164.06 is: 10,746.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,314.38 : 30,474.03 = 7,164.06 : x
  2. Step 2: Convert to fraction form
    20,314.38/30,474.03 = 7,164.06/x
  3. Step 3: Cross multiply
    20,314.38x = 30,474.03 × 7,164.06
  4. Step 4: Simplify right side
    20,314.38x = 218,317,779.36
  5. Step 5: Solve for x
    x = 218,317,779.36/20,314.38
  6. Step 6: Final answer
    x = 10,746.96

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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.