Home / 25,974.72-38,975.04-10,403.28

Finding the Fourth Proportional to 25,974.72, 38,975.04 and 10,403.28

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Solution

The fourth proportional to 25,974.72, 38,975.04 and 10,403.28 is: 15,610.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,974.72 : 38,975.04 = 10,403.28 : x
  2. Step 2: Convert to fraction form
    25,974.72/38,975.04 = 10,403.28/x
  3. Step 3: Cross multiply
    25,974.72x = 38,975.04 × 10,403.28
  4. Step 4: Simplify right side
    25,974.72x = 405,468,254.13
  5. Step 5: Solve for x
    x = 405,468,254.13/25,974.72
  6. Step 6: Final answer
    x = 15,610.11

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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.