Home / 19,942.22-27,519.90-10,990.52

Finding the Fourth Proportional to 19,942.22, 27,519.90 and 10,990.52

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Solution

The fourth proportional to 19,942.22, 27,519.90 and 10,990.52 is: 15,166.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,942.22 : 27,519.90 = 10,990.52 : x
  2. Step 2: Convert to fraction form
    19,942.22/27,519.90 = 10,990.52/x
  3. Step 3: Cross multiply
    19,942.22x = 27,519.90 × 10,990.52
  4. Step 4: Simplify right side
    19,942.22x = 302,458,011.35
  5. Step 5: Solve for x
    x = 302,458,011.35/19,942.22
  6. Step 6: Final answer
    x = 15,166.72

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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.