Home / 19,882.92-27,438.42-10,931

Finding the Fourth Proportional to 19,882.92, 27,438.42 and 10,931

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Solution

The fourth proportional to 19,882.92, 27,438.42 and 10,931 is: 15,084.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,882.92 : 27,438.42 = 10,931 : x
  2. Step 2: Convert to fraction form
    19,882.92/27,438.42 = 10,931/x
  3. Step 3: Cross multiply
    19,882.92x = 27,438.42 × 10,931
  4. Step 4: Simplify right side
    19,882.92x = 299,929,369.02
  5. Step 5: Solve for x
    x = 299,929,369.02/19,882.92
  6. Step 6: Final answer
    x = 15,084.77

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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.