Home / 21,233.73-31,850.49-5,438.73

Finding the Fourth Proportional to 21,233.73, 31,850.49 and 5,438.73

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Solution

The fourth proportional to 21,233.73, 31,850.49 and 5,438.73 is: 8,158.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,233.73 : 31,850.49 = 5,438.73 : x
  2. Step 2: Convert to fraction form
    21,233.73/31,850.49 = 5,438.73/x
  3. Step 3: Cross multiply
    21,233.73x = 31,850.49 × 5,438.73
  4. Step 4: Simplify right side
    21,233.73x = 173,226,215.48
  5. Step 5: Solve for x
    x = 173,226,215.48/21,233.73
  6. Step 6: Final answer
    x = 8,158.07

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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.