Home / 19,943.07-27,520.44-10,990.38

Finding the Fourth Proportional to 19,943.07, 27,520.44 and 10,990.38

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Solution

The fourth proportional to 19,943.07, 27,520.44 and 10,990.38 is: 15,166.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943.07 : 27,520.44 = 10,990.38 : x
  2. Step 2: Convert to fraction form
    19,943.07/27,520.44 = 10,990.38/x
  3. Step 3: Cross multiply
    19,943.07x = 27,520.44 × 10,990.38
  4. Step 4: Simplify right side
    19,943.07x = 302,460,093.37
  5. Step 5: Solve for x
    x = 302,460,093.37/19,943.07
  6. Step 6: Final answer
    x = 15,166.18

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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.