Home / 25,974.06-38,961.09-21,036.30

Finding the Fourth Proportional to 25,974.06, 38,961.09 and 21,036.30

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Solution

The fourth proportional to 25,974.06, 38,961.09 and 21,036.30 is: 31,554.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,974.06 : 38,961.09 = 21,036.30 : x
  2. Step 2: Convert to fraction form
    25,974.06/38,961.09 = 21,036.30/x
  3. Step 3: Cross multiply
    25,974.06x = 38,961.09 × 21,036.30
  4. Step 4: Simplify right side
    25,974.06x = 819,597,177.57
  5. Step 5: Solve for x
    x = 819,597,177.57/25,974.06
  6. Step 6: Final answer
    x = 31,554.45

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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.