Home / 27,836.09-38,413.76-15,261.65

Finding the Fourth Proportional to 27,836.09, 38,413.76 and 15,261.65

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Solution

The fourth proportional to 27,836.09, 38,413.76 and 15,261.65 is: 21,061.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,836.09 : 38,413.76 = 15,261.65 : x
  2. Step 2: Convert to fraction form
    27,836.09/38,413.76 = 15,261.65/x
  3. Step 3: Cross multiply
    27,836.09x = 38,413.76 × 15,261.65
  4. Step 4: Simplify right side
    27,836.09x = 586,257,091.93
  5. Step 5: Solve for x
    x = 586,257,091.93/27,836.09
  6. Step 6: Final answer
    x = 21,061.05

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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.