Home / 25,971.88-38,949.98-7,247.40

Finding the Fourth Proportional to 25,971.88, 38,949.98 and 7,247.40

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Solution

The fourth proportional to 25,971.88, 38,949.98 and 7,247.40 is: 10,868.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,971.88 : 38,949.98 = 7,247.40 : x
  2. Step 2: Convert to fraction form
    25,971.88/38,949.98 = 7,247.40/x
  3. Step 3: Cross multiply
    25,971.88x = 38,949.98 × 7,247.40
  4. Step 4: Simplify right side
    25,971.88x = 282,286,085.05
  5. Step 5: Solve for x
    x = 282,286,085.05/25,971.88
  6. Step 6: Final answer
    x = 10,868.91

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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.