Home / 28,601.93-39,447.27-20,132.09

Finding the Fourth Proportional to 28,601.93, 39,447.27 and 20,132.09

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Solution

The fourth proportional to 28,601.93, 39,447.27 and 20,132.09 is: 27,765.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,601.93 : 39,447.27 = 20,132.09 : x
  2. Step 2: Convert to fraction form
    28,601.93/39,447.27 = 20,132.09/x
  3. Step 3: Cross multiply
    28,601.93x = 39,447.27 × 20,132.09
  4. Step 4: Simplify right side
    28,601.93x = 794,155,989.89
  5. Step 5: Solve for x
    x = 794,155,989.89/28,601.93
  6. Step 6: Final answer
    x = 27,765.82

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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.