Home / 21,226.58-31,839.83-5,644.20

Finding the Fourth Proportional to 21,226.58, 31,839.83 and 5,644.20

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Solution

The fourth proportional to 21,226.58, 31,839.83 and 5,644.20 is: 8,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,226.58 : 31,839.83 = 5,644.20 : x
  2. Step 2: Convert to fraction form
    21,226.58/31,839.83 = 5,644.20/x
  3. Step 3: Cross multiply
    21,226.58x = 31,839.83 × 5,644.20
  4. Step 4: Simplify right side
    21,226.58x = 179,710,480.83
  5. Step 5: Solve for x
    x = 179,710,480.83/21,226.58
  6. Step 6: Final answer
    x = 8,466.30

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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.