Home / 27,013.90-40,502.40-12,214.75

Finding the Fourth Proportional to 27,013.90, 40,502.40 and 12,214.75

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Solution

The fourth proportional to 27,013.90, 40,502.40 and 12,214.75 is: 18,313.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,013.90 : 40,502.40 = 12,214.75 : x
  2. Step 2: Convert to fraction form
    27,013.90/40,502.40 = 12,214.75/x
  3. Step 3: Cross multiply
    27,013.90x = 40,502.40 × 12,214.75
  4. Step 4: Simplify right side
    27,013.90x = 494,726,690.40
  5. Step 5: Solve for x
    x = 494,726,690.40/27,013.90
  6. Step 6: Final answer
    x = 18,313.78

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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.