Home / 19,940.48-27,519.07-10,987.97

Finding the Fourth Proportional to 19,940.48, 27,519.07 and 10,987.97

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Solution

The fourth proportional to 19,940.48, 27,519.07 and 10,987.97 is: 15,164.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.48 : 27,519.07 = 10,987.97 : x
  2. Step 2: Convert to fraction form
    19,940.48/27,519.07 = 10,987.97/x
  3. Step 3: Cross multiply
    19,940.48x = 27,519.07 × 10,987.97
  4. Step 4: Simplify right side
    19,940.48x = 302,378,550.52
  5. Step 5: Solve for x
    x = 302,378,550.52/19,940.48
  6. Step 6: Final answer
    x = 15,164.06

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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.