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Finding the Fourth Proportional to 26,914.50, 37,142.01 and 15,138.50

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Solution

The fourth proportional to 26,914.50, 37,142.01 and 15,138.50 is: 20,891.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,914.50 : 37,142.01 = 15,138.50 : x
  2. Step 2: Convert to fraction form
    26,914.50/37,142.01 = 15,138.50/x
  3. Step 3: Cross multiply
    26,914.50x = 37,142.01 × 15,138.50
  4. Step 4: Simplify right side
    26,914.50x = 562,274,318.39
  5. Step 5: Solve for x
    x = 562,274,318.39/26,914.50
  6. Step 6: Final answer
    x = 20,891.13

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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.