Home / 28,648.42-39,535.22-15,902.43

Finding the Fourth Proportional to 28,648.42, 39,535.22 and 15,902.43

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Solution

The fourth proportional to 28,648.42, 39,535.22 and 15,902.43 is: 21,945.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,648.42 : 39,535.22 = 15,902.43 : x
  2. Step 2: Convert to fraction form
    28,648.42/39,535.22 = 15,902.43/x
  3. Step 3: Cross multiply
    28,648.42x = 39,535.22 × 15,902.43
  4. Step 4: Simplify right side
    28,648.42x = 628,705,960.08
  5. Step 5: Solve for x
    x = 628,705,960.08/28,648.42
  6. Step 6: Final answer
    x = 21,945.57

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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.