Home / 20,742.03-31,117.66-5,949.81

Finding the Fourth Proportional to 20,742.03, 31,117.66 and 5,949.81

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Solution

The fourth proportional to 20,742.03, 31,117.66 and 5,949.81 is: 8,926.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,742.03 : 31,117.66 = 5,949.81 : x
  2. Step 2: Convert to fraction form
    20,742.03/31,117.66 = 5,949.81/x
  3. Step 3: Cross multiply
    20,742.03x = 31,117.66 × 5,949.81
  4. Step 4: Simplify right side
    20,742.03x = 185,144,149.77
  5. Step 5: Solve for x
    x = 185,144,149.77/20,742.03
  6. Step 6: Final answer
    x = 8,926.04

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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.