Home / 28,601.90-39,447.23-20,132.06

Finding the Fourth Proportional to 28,601.90, 39,447.23 and 20,132.06

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Solution

The fourth proportional to 28,601.90, 39,447.23 and 20,132.06 is: 27,765.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,601.90 : 39,447.23 = 20,132.06 : x
  2. Step 2: Convert to fraction form
    28,601.90/39,447.23 = 20,132.06/x
  3. Step 3: Cross multiply
    28,601.90x = 39,447.23 × 20,132.06
  4. Step 4: Simplify right side
    28,601.90x = 794,153,999.15
  5. Step 5: Solve for x
    x = 794,153,999.15/28,601.90
  6. Step 6: Final answer
    x = 27,765.78

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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.