Home / 19,942.76-27,521.20-10,990.59

Finding the Fourth Proportional to 19,942.76, 27,521.20 and 10,990.59

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Solution

The fourth proportional to 19,942.76, 27,521.20 and 10,990.59 is: 15,167.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,942.76 : 27,521.20 = 10,990.59 : x
  2. Step 2: Convert to fraction form
    19,942.76/27,521.20 = 10,990.59/x
  3. Step 3: Cross multiply
    19,942.76x = 27,521.20 × 10,990.59
  4. Step 4: Simplify right side
    19,942.76x = 302,474,294.31
  5. Step 5: Solve for x
    x = 302,474,294.31/19,942.76
  6. Step 6: Final answer
    x = 15,167.12

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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.