Home / 19,805.70-27,331.85-11,849.79

Finding the Fourth Proportional to 19,805.70, 27,331.85 and 11,849.79

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Solution

The fourth proportional to 19,805.70, 27,331.85 and 11,849.79 is: 16,352.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,805.70 : 27,331.85 = 11,849.79 : x
  2. Step 2: Convert to fraction form
    19,805.70/27,331.85 = 11,849.79/x
  3. Step 3: Cross multiply
    19,805.70x = 27,331.85 × 11,849.79
  4. Step 4: Simplify right side
    19,805.70x = 323,876,682.81
  5. Step 5: Solve for x
    x = 323,876,682.81/19,805.70
  6. Step 6: Final answer
    x = 16,352.70

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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.