Home / 25,972.36-38,963.39-10,391.20

Finding the Fourth Proportional to 25,972.36, 38,963.39 and 10,391.20

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Solution

The fourth proportional to 25,972.36, 38,963.39 and 10,391.20 is: 15,588.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,972.36 : 38,963.39 = 10,391.20 : x
  2. Step 2: Convert to fraction form
    25,972.36/38,963.39 = 10,391.20/x
  3. Step 3: Cross multiply
    25,972.36x = 38,963.39 × 10,391.20
  4. Step 4: Simplify right side
    25,972.36x = 404,876,378.17
  5. Step 5: Solve for x
    x = 404,876,378.17/25,972.36
  6. Step 6: Final answer
    x = 15,588.74

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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.