Home / 27,641.78-38,141.81-16,311.75

Finding the Fourth Proportional to 27,641.78, 38,141.81 and 16,311.75

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Solution

The fourth proportional to 27,641.78, 38,141.81 and 16,311.75 is: 22,507.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,641.78 : 38,141.81 = 16,311.75 : x
  2. Step 2: Convert to fraction form
    27,641.78/38,141.81 = 16,311.75/x
  3. Step 3: Cross multiply
    27,641.78x = 38,141.81 × 16,311.75
  4. Step 4: Simplify right side
    27,641.78x = 622,159,669.27
  5. Step 5: Solve for x
    x = 622,159,669.27/27,641.78
  6. Step 6: Final answer
    x = 22,507.95

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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.