Home / 25,972.24-38,936.40-10,400.80

Finding the Fourth Proportional to 25,972.24, 38,936.40 and 10,400.80

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Solution

The fourth proportional to 25,972.24, 38,936.40 and 10,400.80 is: 15,592.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,972.24 : 38,936.40 = 10,400.80 : x
  2. Step 2: Convert to fraction form
    25,972.24/38,936.40 = 10,400.80/x
  3. Step 3: Cross multiply
    25,972.24x = 38,936.40 × 10,400.80
  4. Step 4: Simplify right side
    25,972.24x = 404,969,709.12
  5. Step 5: Solve for x
    x = 404,969,709.12/25,972.24
  6. Step 6: Final answer
    x = 15,592.41

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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.