Home / 20,735.22-31,104.46-7,587.30

Finding the Fourth Proportional to 20,735.22, 31,104.46 and 7,587.30

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Solution

The fourth proportional to 20,735.22, 31,104.46 and 7,587.30 is: 11,381.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.22 : 31,104.46 = 7,587.30 : x
  2. Step 2: Convert to fraction form
    20,735.22/31,104.46 = 7,587.30/x
  3. Step 3: Cross multiply
    20,735.22x = 31,104.46 × 7,587.30
  4. Step 4: Simplify right side
    20,735.22x = 235,998,952.81
  5. Step 5: Solve for x
    x = 235,998,952.81/20,735.22
  6. Step 6: Final answer
    x = 11,381.55

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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.