Home / 19,805.95-27,327.78-11,305.36

Finding the Fourth Proportional to 19,805.95, 27,327.78 and 11,305.36

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Solution

The fourth proportional to 19,805.95, 27,327.78 and 11,305.36 is: 15,598.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,805.95 : 27,327.78 = 11,305.36 : x
  2. Step 2: Convert to fraction form
    19,805.95/27,327.78 = 11,305.36/x
  3. Step 3: Cross multiply
    19,805.95x = 27,327.78 × 11,305.36
  4. Step 4: Simplify right side
    19,805.95x = 308,950,390.90
  5. Step 5: Solve for x
    x = 308,950,390.90/19,805.95
  6. Step 6: Final answer
    x = 15,598.87

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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.