Home / 21,639.14-32,453.14-8,491.62

Finding the Fourth Proportional to 21,639.14, 32,453.14 and 8,491.62

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Solution

The fourth proportional to 21,639.14, 32,453.14 and 8,491.62 is: 12,735.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,639.14 : 32,453.14 = 8,491.62 : x
  2. Step 2: Convert to fraction form
    21,639.14/32,453.14 = 8,491.62/x
  3. Step 3: Cross multiply
    21,639.14x = 32,453.14 × 8,491.62
  4. Step 4: Simplify right side
    21,639.14x = 275,579,732.69
  5. Step 5: Solve for x
    x = 275,579,732.69/21,639.14
  6. Step 6: Final answer
    x = 12,735.24

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1.5x scale

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.