Home / 28,452.52-39,262.89-15,878.08

Finding the Fourth Proportional to 28,452.52, 39,262.89 and 15,878.08

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Solution

The fourth proportional to 28,452.52, 39,262.89 and 15,878.08 is: 21,910.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,452.52 : 39,262.89 = 15,878.08 : x
  2. Step 2: Convert to fraction form
    28,452.52/39,262.89 = 15,878.08/x
  3. Step 3: Cross multiply
    28,452.52x = 39,262.89 × 15,878.08
  4. Step 4: Simplify right side
    28,452.52x = 623,419,308.45
  5. Step 5: Solve for x
    x = 623,419,308.45/28,452.52
  6. Step 6: Final answer
    x = 21,910.86

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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.