Home / 19,975.68-29,943.68-11,217.92

Finding the Fourth Proportional to 19,975.68, 29,943.68 and 11,217.92

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Solution

The fourth proportional to 19,975.68, 29,943.68 and 11,217.92 is: 16,815.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,975.68 : 29,943.68 = 11,217.92 : x
  2. Step 2: Convert to fraction form
    19,975.68/29,943.68 = 11,217.92/x
  3. Step 3: Cross multiply
    19,975.68x = 29,943.68 × 11,217.92
  4. Step 4: Simplify right side
    19,975.68x = 335,905,806.75
  5. Step 5: Solve for x
    x = 335,905,806.75/19,975.68
  6. Step 6: Final answer
    x = 16,815.74

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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.