Home / 21,028.80-31,537.78-6,234.20

Finding the Fourth Proportional to 21,028.80, 31,537.78 and 6,234.20

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Solution

The fourth proportional to 21,028.80, 31,537.78 and 6,234.20 is: 9,349.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,028.80 : 31,537.78 = 6,234.20 : x
  2. Step 2: Convert to fraction form
    21,028.80/31,537.78 = 6,234.20/x
  3. Step 3: Cross multiply
    21,028.80x = 31,537.78 × 6,234.20
  4. Step 4: Simplify right side
    21,028.80x = 196,612,828.08
  5. Step 5: Solve for x
    x = 196,612,828.08/21,028.80
  6. Step 6: Final answer
    x = 9,349.69

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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.