Home / 19,791.87-27,312.78-10,839.36

Finding the Fourth Proportional to 19,791.87, 27,312.78 and 10,839.36

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Solution

The fourth proportional to 19,791.87, 27,312.78 and 10,839.36 is: 14,958.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,791.87 : 27,312.78 = 10,839.36 : x
  2. Step 2: Convert to fraction form
    19,791.87/27,312.78 = 10,839.36/x
  3. Step 3: Cross multiply
    19,791.87x = 27,312.78 × 10,839.36
  4. Step 4: Simplify right side
    19,791.87x = 296,053,055.02
  5. Step 5: Solve for x
    x = 296,053,055.02/19,791.87
  6. Step 6: Final answer
    x = 14,958.32

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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.