Home / 20,862.75-31,291.38-7,534.38

Finding the Fourth Proportional to 20,862.75, 31,291.38 and 7,534.38

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Solution

The fourth proportional to 20,862.75, 31,291.38 and 7,534.38 is: 11,300.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862.75 : 31,291.38 = 7,534.38 : x
  2. Step 2: Convert to fraction form
    20,862.75/31,291.38 = 7,534.38/x
  3. Step 3: Cross multiply
    20,862.75x = 31,291.38 × 7,534.38
  4. Step 4: Simplify right side
    20,862.75x = 235,761,147.64
  5. Step 5: Solve for x
    x = 235,761,147.64/20,862.75
  6. Step 6: Final answer
    x = 11,300.58

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1.5x scale

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.