Home / 19,571.50-27,008.68-11,188.18

Finding the Fourth Proportional to 19,571.50, 27,008.68 and 11,188.18

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Solution

The fourth proportional to 19,571.50, 27,008.68 and 11,188.18 is: 15,439.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,571.50 : 27,008.68 = 11,188.18 : x
  2. Step 2: Convert to fraction form
    19,571.50/27,008.68 = 11,188.18/x
  3. Step 3: Cross multiply
    19,571.50x = 27,008.68 × 11,188.18
  4. Step 4: Simplify right side
    19,571.50x = 302,177,973.40
  5. Step 5: Solve for x
    x = 302,177,973.40/19,571.50
  6. Step 6: Final answer
    x = 15,439.69

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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.