Home / 20,262.67-27,960.48-11,187.45

Finding the Fourth Proportional to 20,262.67, 27,960.48 and 11,187.45

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Solution

The fourth proportional to 20,262.67, 27,960.48 and 11,187.45 is: 15,437.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262.67 : 27,960.48 = 11,187.45 : x
  2. Step 2: Convert to fraction form
    20,262.67/27,960.48 = 11,187.45/x
  3. Step 3: Cross multiply
    20,262.67x = 27,960.48 × 11,187.45
  4. Step 4: Simplify right side
    20,262.67x = 312,806,342.65
  5. Step 5: Solve for x
    x = 312,806,342.65/20,262.67
  6. Step 6: Final answer
    x = 15,437.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.