Home / 38,338.80-57,436.92-20,823.36

Finding the Fourth Proportional to 38,338.80, 57,436.92 and 20,823.36

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Solution

The fourth proportional to 38,338.80, 57,436.92 and 20,823.36 is: 31,196.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,338.80 : 57,436.92 = 20,823.36 : x
  2. Step 2: Convert to fraction form
    38,338.80/57,436.92 = 20,823.36/x
  3. Step 3: Cross multiply
    38,338.80x = 57,436.92 × 20,823.36
  4. Step 4: Simplify right side
    38,338.80x = 1,196,029,662.45
  5. Step 5: Solve for x
    x = 1,196,029,662.45/38,338.80
  6. Step 6: Final answer
    x = 31,196.32

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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.