Home / 25,988.06-38,979.66-7,269.78

Finding the Fourth Proportional to 25,988.06, 38,979.66 and 7,269.78

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Solution

The fourth proportional to 25,988.06, 38,979.66 and 7,269.78 is: 10,903.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,988.06 : 38,979.66 = 7,269.78 : x
  2. Step 2: Convert to fraction form
    25,988.06/38,979.66 = 7,269.78/x
  3. Step 3: Cross multiply
    25,988.06x = 38,979.66 × 7,269.78
  4. Step 4: Simplify right side
    25,988.06x = 283,373,552.67
  5. Step 5: Solve for x
    x = 283,373,552.67/25,988.06
  6. Step 6: Final answer
    x = 10,903.99

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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.