Home / 27,993.18-38,629.89-15,895.92

Finding the Fourth Proportional to 27,993.18, 38,629.89 and 15,895.92

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Solution

The fourth proportional to 27,993.18, 38,629.89 and 15,895.92 is: 21,935.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,993.18 : 38,629.89 = 15,895.92 : x
  2. Step 2: Convert to fraction form
    27,993.18/38,629.89 = 15,895.92/x
  3. Step 3: Cross multiply
    27,993.18x = 38,629.89 × 15,895.92
  4. Step 4: Simplify right side
    27,993.18x = 614,057,641.05
  5. Step 5: Solve for x
    x = 614,057,641.05/27,993.18
  6. Step 6: Final answer
    x = 21,935.97

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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.