Home / 21,517.47-32,283.49-10,991.92

Finding the Fourth Proportional to 21,517.47, 32,283.49 and 10,991.92

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Solution

The fourth proportional to 21,517.47, 32,283.49 and 10,991.92 is: 16,491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,517.47 : 32,283.49 = 10,991.92 : x
  2. Step 2: Convert to fraction form
    21,517.47/32,283.49 = 10,991.92/x
  3. Step 3: Cross multiply
    21,517.47x = 32,283.49 × 10,991.92
  4. Step 4: Simplify right side
    21,517.47x = 354,857,511.92
  5. Step 5: Solve for x
    x = 354,857,511.92/21,517.47
  6. Step 6: Final answer
    x = 16,491.60

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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.