Home / 27,859.95-38,446.41-15,284.70

Finding the Fourth Proportional to 27,859.95, 38,446.41 and 15,284.70

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Solution

The fourth proportional to 27,859.95, 38,446.41 and 15,284.70 is: 21,092.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,859.95 : 38,446.41 = 15,284.70 : x
  2. Step 2: Convert to fraction form
    27,859.95/38,446.41 = 15,284.70/x
  3. Step 3: Cross multiply
    27,859.95x = 38,446.41 × 15,284.70
  4. Step 4: Simplify right side
    27,859.95x = 587,641,842.93
  5. Step 5: Solve for x
    x = 587,641,842.93/27,859.95
  6. Step 6: Final answer
    x = 21,092.71

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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.