Home / 21,860.62-32,823.73-12,511.19

Finding the Fourth Proportional to 21,860.62, 32,823.73 and 12,511.19

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Solution

The fourth proportional to 21,860.62, 32,823.73 and 12,511.19 is: 18,785.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,860.62 : 32,823.73 = 12,511.19 : x
  2. Step 2: Convert to fraction form
    21,860.62/32,823.73 = 12,511.19/x
  3. Step 3: Cross multiply
    21,860.62x = 32,823.73 × 12,511.19
  4. Step 4: Simplify right side
    21,860.62x = 410,664,020.24
  5. Step 5: Solve for x
    x = 410,664,020.24/21,860.62
  6. Step 6: Final answer
    x = 18,785.56

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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.