Home / 21,229.78-31,844.67-9,529.33

Finding the Fourth Proportional to 21,229.78, 31,844.67 and 9,529.33

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Solution

The fourth proportional to 21,229.78, 31,844.67 and 9,529.33 is: 14,294.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,229.78 : 31,844.67 = 9,529.33 : x
  2. Step 2: Convert to fraction form
    21,229.78/31,844.67 = 9,529.33/x
  3. Step 3: Cross multiply
    21,229.78x = 31,844.67 × 9,529.33
  4. Step 4: Simplify right side
    21,229.78x = 303,458,367.14
  5. Step 5: Solve for x
    x = 303,458,367.14/21,229.78
  6. Step 6: Final answer
    x = 14,294.00

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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.