Home / 20,040.57-27,655.89-11,539.58

Finding the Fourth Proportional to 20,040.57, 27,655.89 and 11,539.58

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Solution

The fourth proportional to 20,040.57, 27,655.89 and 11,539.58 is: 15,924.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.57 : 27,655.89 = 11,539.58 : x
  2. Step 2: Convert to fraction form
    20,040.57/27,655.89 = 11,539.58/x
  3. Step 3: Cross multiply
    20,040.57x = 27,655.89 × 11,539.58
  4. Step 4: Simplify right side
    20,040.57x = 319,137,216.85
  5. Step 5: Solve for x
    x = 319,137,216.85/20,040.57
  6. Step 6: Final answer
    x = 15,924.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.