Home / 28,648.97-39,535.60-15,902.16

Finding the Fourth Proportional to 28,648.97, 39,535.60 and 15,902.16

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Solution

The fourth proportional to 28,648.97, 39,535.60 and 15,902.16 is: 21,944.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,648.97 : 39,535.60 = 15,902.16 : x
  2. Step 2: Convert to fraction form
    28,648.97/39,535.60 = 15,902.16/x
  3. Step 3: Cross multiply
    28,648.97x = 39,535.60 × 15,902.16
  4. Step 4: Simplify right side
    28,648.97x = 628,701,436.90
  5. Step 5: Solve for x
    x = 628,701,436.90/28,648.97
  6. Step 6: Final answer
    x = 21,944.99

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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.