Home / 25,991.08-38,979.70-7,269.95

Finding the Fourth Proportional to 25,991.08, 38,979.70 and 7,269.95

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Solution

The fourth proportional to 25,991.08, 38,979.70 and 7,269.95 is: 10,902.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,991.08 : 38,979.70 = 7,269.95 : x
  2. Step 2: Convert to fraction form
    25,991.08/38,979.70 = 7,269.95/x
  3. Step 3: Cross multiply
    25,991.08x = 38,979.70 × 7,269.95
  4. Step 4: Simplify right side
    25,991.08x = 283,380,549.29
  5. Step 5: Solve for x
    x = 283,380,549.29/25,991.08
  6. Step 6: Final answer
    x = 10,902.99

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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.