Home / 20,266.70-27,967.14-11,313.99

Finding the Fourth Proportional to 20,266.70, 27,967.14 and 11,313.99

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Solution

The fourth proportional to 20,266.70, 27,967.14 and 11,313.99 is: 15,612.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.70 : 27,967.14 = 11,313.99 : x
  2. Step 2: Convert to fraction form
    20,266.70/27,967.14 = 11,313.99/x
  3. Step 3: Cross multiply
    20,266.70x = 27,967.14 × 11,313.99
  4. Step 4: Simplify right side
    20,266.70x = 316,419,942.29
  5. Step 5: Solve for x
    x = 316,419,942.29/20,266.70
  6. Step 6: Final answer
    x = 15,612.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.