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Finding the Fourth Proportional to 26,812.60, 40,218.90 and 16,995.40

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Solution

The fourth proportional to 26,812.60, 40,218.90 and 16,995.40 is: 25,493.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,812.60 : 40,218.90 = 16,995.40 : x
  2. Step 2: Convert to fraction form
    26,812.60/40,218.90 = 16,995.40/x
  3. Step 3: Cross multiply
    26,812.60x = 40,218.90 × 16,995.40
  4. Step 4: Simplify right side
    26,812.60x = 683,536,293.06
  5. Step 5: Solve for x
    x = 683,536,293.06/26,812.60
  6. Step 6: Final answer
    x = 25,493.10

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Similar ratio
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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.