Home / 20,744.05-31,106.35-7,587.22

Finding the Fourth Proportional to 20,744.05, 31,106.35 and 7,587.22

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Solution

The fourth proportional to 20,744.05, 31,106.35 and 7,587.22 is: 11,377.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.05 : 31,106.35 = 7,587.22 : x
  2. Step 2: Convert to fraction form
    20,744.05/31,106.35 = 7,587.22/x
  3. Step 3: Cross multiply
    20,744.05x = 31,106.35 × 7,587.22
  4. Step 4: Simplify right side
    20,744.05x = 236,010,720.85
  5. Step 5: Solve for x
    x = 236,010,720.85/20,744.05
  6. Step 6: Final answer
    x = 11,377.27

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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.