Home / 27,015.11-40,522.13-12,213.68

Finding the Fourth Proportional to 27,015.11, 40,522.13 and 12,213.68

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Solution

The fourth proportional to 27,015.11, 40,522.13 and 12,213.68 is: 18,320.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,015.11 : 40,522.13 = 12,213.68 : x
  2. Step 2: Convert to fraction form
    27,015.11/40,522.13 = 12,213.68/x
  3. Step 3: Cross multiply
    27,015.11x = 40,522.13 × 12,213.68
  4. Step 4: Simplify right side
    27,015.11x = 494,924,156.66
  5. Step 5: Solve for x
    x = 494,924,156.66/27,015.11
  6. Step 6: Final answer
    x = 18,320.27

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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.