Home / 19,972.29-27,561.86-11,019.80

Finding the Fourth Proportional to 19,972.29, 27,561.86 and 11,019.80

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Solution

The fourth proportional to 19,972.29, 27,561.86 and 11,019.80 is: 15,207.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.29 : 27,561.86 = 11,019.80 : x
  2. Step 2: Convert to fraction form
    19,972.29/27,561.86 = 11,019.80/x
  3. Step 3: Cross multiply
    19,972.29x = 27,561.86 × 11,019.80
  4. Step 4: Simplify right side
    19,972.29x = 303,726,136.60
  5. Step 5: Solve for x
    x = 303,726,136.60/19,972.29
  6. Step 6: Final answer
    x = 15,207.38

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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.