Home / 19,942.58-27,519.74-10,989.88

Finding the Fourth Proportional to 19,942.58, 27,519.74 and 10,989.88

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Solution

The fourth proportional to 19,942.58, 27,519.74 and 10,989.88 is: 15,165.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,942.58 : 27,519.74 = 10,989.88 : x
  2. Step 2: Convert to fraction form
    19,942.58/27,519.74 = 10,989.88/x
  3. Step 3: Cross multiply
    19,942.58x = 27,519.74 × 10,989.88
  4. Step 4: Simplify right side
    19,942.58x = 302,438,640.23
  5. Step 5: Solve for x
    x = 302,438,640.23/19,942.58
  6. Step 6: Final answer
    x = 15,165.47

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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.