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Finding the Fourth Proportional to 26,976.70, 40,428.60 and 18,066.70

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Solution

The fourth proportional to 26,976.70, 40,428.60 and 18,066.70 is: 27,075.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,976.70 : 40,428.60 = 18,066.70 : x
  2. Step 2: Convert to fraction form
    26,976.70/40,428.60 = 18,066.70/x
  3. Step 3: Cross multiply
    26,976.70x = 40,428.60 × 18,066.70
  4. Step 4: Simplify right side
    26,976.70x = 730,411,387.62
  5. Step 5: Solve for x
    x = 730,411,387.62/26,976.70
  6. Step 6: Final answer
    x = 27,075.64

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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.