Home / 27,238.96-40,830-18,474.40

Finding the Fourth Proportional to 27,238.96, 40,830 and 18,474.40

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Solution

The fourth proportional to 27,238.96, 40,830 and 18,474.40 is: 27,692.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,238.96 : 40,830 = 18,474.40 : x
  2. Step 2: Convert to fraction form
    27,238.96/40,830 = 18,474.40/x
  3. Step 3: Cross multiply
    27,238.96x = 40,830 × 18,474.40
  4. Step 4: Simplify right side
    27,238.96x = 754,309,752
  5. Step 5: Solve for x
    x = 754,309,752/27,238.96
  6. Step 6: Final answer
    x = 27,692.31

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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.