Home / 28,452.20-39,262.82-15,876.84

Finding the Fourth Proportional to 28,452.20, 39,262.82 and 15,876.84

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Solution

The fourth proportional to 28,452.20, 39,262.82 and 15,876.84 is: 21,909.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,452.20 : 39,262.82 = 15,876.84 : x
  2. Step 2: Convert to fraction form
    28,452.20/39,262.82 = 15,876.84/x
  3. Step 3: Cross multiply
    28,452.20x = 39,262.82 × 15,876.84
  4. Step 4: Simplify right side
    28,452.20x = 623,369,511.09
  5. Step 5: Solve for x
    x = 623,369,511.09/28,452.20
  6. Step 6: Final answer
    x = 21,909.36

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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.