Home / 20,877.03-31,315.14-5,294.25

Finding the Fourth Proportional to 20,877.03, 31,315.14 and 5,294.25

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Solution

The fourth proportional to 20,877.03, 31,315.14 and 5,294.25 is: 7,941.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,877.03 : 31,315.14 = 5,294.25 : x
  2. Step 2: Convert to fraction form
    20,877.03/31,315.14 = 5,294.25/x
  3. Step 3: Cross multiply
    20,877.03x = 31,315.14 × 5,294.25
  4. Step 4: Simplify right side
    20,877.03x = 165,790,179.95
  5. Step 5: Solve for x
    x = 165,790,179.95/20,877.03
  6. Step 6: Final answer
    x = 7,941.27

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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.