Home / 19,916.28-29,825.12-11,570.99

Finding the Fourth Proportional to 19,916.28, 29,825.12 and 11,570.99

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Solution

The fourth proportional to 19,916.28, 29,825.12 and 11,570.99 is: 17,327.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,916.28 : 29,825.12 = 11,570.99 : x
  2. Step 2: Convert to fraction form
    19,916.28/29,825.12 = 11,570.99/x
  3. Step 3: Cross multiply
    19,916.28x = 29,825.12 × 11,570.99
  4. Step 4: Simplify right side
    19,916.28x = 345,105,958.29
  5. Step 5: Solve for x
    x = 345,105,958.29/19,916.28
  6. Step 6: Final answer
    x = 17,327.83

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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.