Home / 25,878.09-38,789.45-13,385.54

Finding the Fourth Proportional to 25,878.09, 38,789.45 and 13,385.54

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Solution

The fourth proportional to 25,878.09, 38,789.45 and 13,385.54 is: 20,063.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,878.09 : 38,789.45 = 13,385.54 : x
  2. Step 2: Convert to fraction form
    25,878.09/38,789.45 = 13,385.54/x
  3. Step 3: Cross multiply
    25,878.09x = 38,789.45 × 13,385.54
  4. Step 4: Simplify right side
    25,878.09x = 519,217,473.68
  5. Step 5: Solve for x
    x = 519,217,473.68/25,878.09
  6. Step 6: Final answer
    x = 20,063.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.