Home / 19,939.96-27,517.89-10,988.45

Finding the Fourth Proportional to 19,939.96, 27,517.89 and 10,988.45

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Solution

The fourth proportional to 19,939.96, 27,517.89 and 10,988.45 is: 15,164.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939.96 : 27,517.89 = 10,988.45 : x
  2. Step 2: Convert to fraction form
    19,939.96/27,517.89 = 10,988.45/x
  3. Step 3: Cross multiply
    19,939.96x = 27,517.89 × 10,988.45
  4. Step 4: Simplify right side
    19,939.96x = 302,378,958.37
  5. Step 5: Solve for x
    x = 302,378,958.37/19,939.96
  6. Step 6: Final answer
    x = 15,164.47

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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.