Home / 25,456.36-38,171.54-10,661.24

Finding the Fourth Proportional to 25,456.36, 38,171.54 and 10,661.24

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Solution

The fourth proportional to 25,456.36, 38,171.54 and 10,661.24 is: 15,986.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,456.36 : 38,171.54 = 10,661.24 : x
  2. Step 2: Convert to fraction form
    25,456.36/38,171.54 = 10,661.24/x
  3. Step 3: Cross multiply
    25,456.36x = 38,171.54 × 10,661.24
  4. Step 4: Simplify right side
    25,456.36x = 406,955,949.11
  5. Step 5: Solve for x
    x = 406,955,949.11/25,456.36
  6. Step 6: Final answer
    x = 15,986.42

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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.