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Finding the Fourth Proportional to 26,705.60, 40,015.20 and 16,827.20

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Solution

The fourth proportional to 26,705.60, 40,015.20 and 16,827.20 is: 25,213.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,705.60 : 40,015.20 = 16,827.20 : x
  2. Step 2: Convert to fraction form
    26,705.60/40,015.20 = 16,827.20/x
  3. Step 3: Cross multiply
    26,705.60x = 40,015.20 × 16,827.20
  4. Step 4: Simplify right side
    26,705.60x = 673,343,773.44
  5. Step 5: Solve for x
    x = 673,343,773.44/26,705.60
  6. Step 6: Final answer
    x = 25,213.58

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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.