Home / 19,940.14-27,517.50-10,988.47

Finding the Fourth Proportional to 19,940.14, 27,517.50 and 10,988.47

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Solution

The fourth proportional to 19,940.14, 27,517.50 and 10,988.47 is: 15,164.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.14 : 27,517.50 = 10,988.47 : x
  2. Step 2: Convert to fraction form
    19,940.14/27,517.50 = 10,988.47/x
  3. Step 3: Cross multiply
    19,940.14x = 27,517.50 × 10,988.47
  4. Step 4: Simplify right side
    19,940.14x = 302,375,223.23
  5. Step 5: Solve for x
    x = 302,375,223.23/19,940.14
  6. Step 6: Final answer
    x = 15,164.15

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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.