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Finding the Fourth Proportional to 27,967.40, 41,936.70 and 10,428.20

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Solution

The fourth proportional to 27,967.40, 41,936.70 and 10,428.20 is: 15,636.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,967.40 : 41,936.70 = 10,428.20 : x
  2. Step 2: Convert to fraction form
    27,967.40/41,936.70 = 10,428.20/x
  3. Step 3: Cross multiply
    27,967.40x = 41,936.70 × 10,428.20
  4. Step 4: Simplify right side
    27,967.40x = 437,324,294.94
  5. Step 5: Solve for x
    x = 437,324,294.94/27,967.40
  6. Step 6: Final answer
    x = 15,636.93

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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.