Home / 20,693.88-31,033.26-7,542.36

Finding the Fourth Proportional to 20,693.88, 31,033.26 and 7,542.36

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Solution

The fourth proportional to 20,693.88, 31,033.26 and 7,542.36 is: 11,310.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,693.88 : 31,033.26 = 7,542.36 : x
  2. Step 2: Convert to fraction form
    20,693.88/31,033.26 = 7,542.36/x
  3. Step 3: Cross multiply
    20,693.88x = 31,033.26 × 7,542.36
  4. Step 4: Simplify right side
    20,693.88x = 234,064,018.89
  5. Step 5: Solve for x
    x = 234,064,018.89/20,693.88
  6. Step 6: Final answer
    x = 11,310.78

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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.