Home / 25,860.78-35,691.93-15,251.58

Finding the Fourth Proportional to 25,860.78, 35,691.93 and 15,251.58

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Solution

The fourth proportional to 25,860.78, 35,691.93 and 15,251.58 is: 21,049.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,860.78 : 35,691.93 = 15,251.58 : x
  2. Step 2: Convert to fraction form
    25,860.78/35,691.93 = 15,251.58/x
  3. Step 3: Cross multiply
    25,860.78x = 35,691.93 × 15,251.58
  4. Step 4: Simplify right side
    25,860.78x = 544,358,325.75
  5. Step 5: Solve for x
    x = 544,358,325.75/25,860.78
  6. Step 6: Final answer
    x = 21,049.57

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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.