Home / 20,248.53-27,939.78-11,295.60

Finding the Fourth Proportional to 20,248.53, 27,939.78 and 11,295.60

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Solution

The fourth proportional to 20,248.53, 27,939.78 and 11,295.60 is: 15,586.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,248.53 : 27,939.78 = 11,295.60 : x
  2. Step 2: Convert to fraction form
    20,248.53/27,939.78 = 11,295.60/x
  3. Step 3: Cross multiply
    20,248.53x = 27,939.78 × 11,295.60
  4. Step 4: Simplify right side
    20,248.53x = 315,596,578.97
  5. Step 5: Solve for x
    x = 315,596,578.97/20,248.53
  6. Step 6: Final answer
    x = 15,586.15

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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.