Home / 25,409.19-38,112.33-6,939.75

Finding the Fourth Proportional to 25,409.19, 38,112.33 and 6,939.75

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Solution

The fourth proportional to 25,409.19, 38,112.33 and 6,939.75 is: 10,409.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,409.19 : 38,112.33 = 6,939.75 : x
  2. Step 2: Convert to fraction form
    25,409.19/38,112.33 = 6,939.75/x
  3. Step 3: Cross multiply
    25,409.19x = 38,112.33 × 6,939.75
  4. Step 4: Simplify right side
    25,409.19x = 264,490,042.12
  5. Step 5: Solve for x
    x = 264,490,042.12/25,409.19
  6. Step 6: Final answer
    x = 10,409.23

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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.