Home / 38,505.36-57,776.41-20,974.80

Finding the Fourth Proportional to 38,505.36, 57,776.41 and 20,974.80

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Solution

The fourth proportional to 38,505.36, 57,776.41 and 20,974.80 is: 31,472.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,505.36 : 57,776.41 = 20,974.80 : x
  2. Step 2: Convert to fraction form
    38,505.36/57,776.41 = 20,974.80/x
  3. Step 3: Cross multiply
    38,505.36x = 57,776.41 × 20,974.80
  4. Step 4: Simplify right side
    38,505.36x = 1,211,848,644.47
  5. Step 5: Solve for x
    x = 1,211,848,644.47/38,505.36
  6. Step 6: Final answer
    x = 31,472.21

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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.