Home / 19,943.27-27,521.89-10,991.09

Finding the Fourth Proportional to 19,943.27, 27,521.89 and 10,991.09

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Solution

The fourth proportional to 19,943.27, 27,521.89 and 10,991.09 is: 15,167.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943.27 : 27,521.89 = 10,991.09 : x
  2. Step 2: Convert to fraction form
    19,943.27/27,521.89 = 10,991.09/x
  3. Step 3: Cross multiply
    19,943.27x = 27,521.89 × 10,991.09
  4. Step 4: Simplify right side
    19,943.27x = 302,495,611.29
  5. Step 5: Solve for x
    x = 302,495,611.29/19,943.27
  6. Step 6: Final answer
    x = 15,167.81

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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.