Home / 20,185.19-27,854.79-11,232.41

Finding the Fourth Proportional to 20,185.19, 27,854.79 and 11,232.41

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Solution

The fourth proportional to 20,185.19, 27,854.79 and 11,232.41 is: 15,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.19 : 27,854.79 = 11,232.41 : x
  2. Step 2: Convert to fraction form
    20,185.19/27,854.79 = 11,232.41/x
  3. Step 3: Cross multiply
    20,185.19x = 27,854.79 × 11,232.41
  4. Step 4: Simplify right side
    20,185.19x = 312,876,421.74
  5. Step 5: Solve for x
    x = 312,876,421.74/20,185.19
  6. Step 6: Final answer
    x = 15,500.30

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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.