Home / 28,452.67-39,264.60-15,877.42

Finding the Fourth Proportional to 28,452.67, 39,264.60 and 15,877.42

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Solution

The fourth proportional to 28,452.67, 39,264.60 and 15,877.42 is: 21,910.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,452.67 : 39,264.60 = 15,877.42 : x
  2. Step 2: Convert to fraction form
    28,452.67/39,264.60 = 15,877.42/x
  3. Step 3: Cross multiply
    28,452.67x = 39,264.60 × 15,877.42
  4. Step 4: Simplify right side
    28,452.67x = 623,420,545.33
  5. Step 5: Solve for x
    x = 623,420,545.33/28,452.67
  6. Step 6: Final answer
    x = 21,910.79

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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.