Home / 19,942.18-27,518.91-10,989.68

Finding the Fourth Proportional to 19,942.18, 27,518.91 and 10,989.68

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Solution

The fourth proportional to 19,942.18, 27,518.91 and 10,989.68 is: 15,165.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,942.18 : 27,518.91 = 10,989.68 : x
  2. Step 2: Convert to fraction form
    19,942.18/27,518.91 = 10,989.68/x
  3. Step 3: Cross multiply
    19,942.18x = 27,518.91 × 10,989.68
  4. Step 4: Simplify right side
    19,942.18x = 302,424,028.70
  5. Step 5: Solve for x
    x = 302,424,028.70/19,942.18
  6. Step 6: Final answer
    x = 15,165.04

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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.