Home / 22,563.38-31,136.60-12,491.64

Finding the Fourth Proportional to 22,563.38, 31,136.60 and 12,491.64

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Solution

The fourth proportional to 22,563.38, 31,136.60 and 12,491.64 is: 17,237.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,563.38 : 31,136.60 = 12,491.64 : x
  2. Step 2: Convert to fraction form
    22,563.38/31,136.60 = 12,491.64/x
  3. Step 3: Cross multiply
    22,563.38x = 31,136.60 × 12,491.64
  4. Step 4: Simplify right side
    22,563.38x = 388,947,229.25
  5. Step 5: Solve for x
    x = 388,947,229.25/22,563.38
  6. Step 6: Final answer
    x = 17,237.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.