Home / 19,571.45-27,008.58-11,187.95

Finding the Fourth Proportional to 19,571.45, 27,008.58 and 11,187.95

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Solution

The fourth proportional to 19,571.45, 27,008.58 and 11,187.95 is: 15,439.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,571.45 : 27,008.58 = 11,187.95 : x
  2. Step 2: Convert to fraction form
    19,571.45/27,008.58 = 11,187.95/x
  3. Step 3: Cross multiply
    19,571.45x = 27,008.58 × 11,187.95
  4. Step 4: Simplify right side
    19,571.45x = 302,170,507.57
  5. Step 5: Solve for x
    x = 302,170,507.57/19,571.45
  6. Step 6: Final answer
    x = 15,439.36

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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.