Home / 30,971.28-46,532.88-19,882.56

Finding the Fourth Proportional to 30,971.28, 46,532.88 and 19,882.56

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Solution

The fourth proportional to 30,971.28, 46,532.88 and 19,882.56 is: 29,872.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,971.28 : 46,532.88 = 19,882.56 : x
  2. Step 2: Convert to fraction form
    30,971.28/46,532.88 = 19,882.56/x
  3. Step 3: Cross multiply
    30,971.28x = 46,532.88 × 19,882.56
  4. Step 4: Simplify right side
    30,971.28x = 925,192,778.57
  5. Step 5: Solve for x
    x = 925,192,778.57/30,971.28
  6. Step 6: Final answer
    x = 29,872.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.