Home / 25,965.36-38,932.47-11,907.78

Finding the Fourth Proportional to 25,965.36, 38,932.47 and 11,907.78

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Solution

The fourth proportional to 25,965.36, 38,932.47 and 11,907.78 is: 17,854.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,965.36 : 38,932.47 = 11,907.78 : x
  2. Step 2: Convert to fraction form
    25,965.36/38,932.47 = 11,907.78/x
  3. Step 3: Cross multiply
    25,965.36x = 38,932.47 × 11,907.78
  4. Step 4: Simplify right side
    25,965.36x = 463,599,405.27
  5. Step 5: Solve for x
    x = 463,599,405.27/25,965.36
  6. Step 6: Final answer
    x = 17,854.53

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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.