Home / 25,780.80-38,648.88-15,370.68

Finding the Fourth Proportional to 25,780.80, 38,648.88 and 15,370.68

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Solution

The fourth proportional to 25,780.80, 38,648.88 and 15,370.68 is: 23,042.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,780.80 : 38,648.88 = 15,370.68 : x
  2. Step 2: Convert to fraction form
    25,780.80/38,648.88 = 15,370.68/x
  3. Step 3: Cross multiply
    25,780.80x = 38,648.88 × 15,370.68
  4. Step 4: Simplify right side
    25,780.80x = 594,059,566.84
  5. Step 5: Solve for x
    x = 594,059,566.84/25,780.80
  6. Step 6: Final answer
    x = 23,042.71

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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.