Home / 27,591.55-41,387.70-7,870.11

Finding the Fourth Proportional to 27,591.55, 41,387.70 and 7,870.11

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Solution

The fourth proportional to 27,591.55, 41,387.70 and 7,870.11 is: 11,805.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,591.55 : 41,387.70 = 7,870.11 : x
  2. Step 2: Convert to fraction form
    27,591.55/41,387.70 = 7,870.11/x
  3. Step 3: Cross multiply
    27,591.55x = 41,387.70 × 7,870.11
  4. Step 4: Simplify right side
    27,591.55x = 325,725,751.65
  5. Step 5: Solve for x
    x = 325,725,751.65/27,591.55
  6. Step 6: Final answer
    x = 11,805.27

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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.