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Finding the Fourth Proportional to 27,233.20, 40,849.80 and 21,328.30

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Solution

The fourth proportional to 27,233.20, 40,849.80 and 21,328.30 is: 31,992.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,233.20 : 40,849.80 = 21,328.30 : x
  2. Step 2: Convert to fraction form
    27,233.20/40,849.80 = 21,328.30/x
  3. Step 3: Cross multiply
    27,233.20x = 40,849.80 × 21,328.30
  4. Step 4: Simplify right side
    27,233.20x = 871,256,789.34
  5. Step 5: Solve for x
    x = 871,256,789.34/27,233.20
  6. Step 6: Final answer
    x = 31,992.45

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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.