Home / 21,202.38-31,799.97-5,621.58

Finding the Fourth Proportional to 21,202.38, 31,799.97 and 5,621.58

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Solution

The fourth proportional to 21,202.38, 31,799.97 and 5,621.58 is: 8,431.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,202.38 : 31,799.97 = 5,621.58 : x
  2. Step 2: Convert to fraction form
    21,202.38/31,799.97 = 5,621.58/x
  3. Step 3: Cross multiply
    21,202.38x = 31,799.97 × 5,621.58
  4. Step 4: Simplify right side
    21,202.38x = 178,766,075.35
  5. Step 5: Solve for x
    x = 178,766,075.35/21,202.38
  6. Step 6: Final answer
    x = 8,431.42

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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.