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Finding the Fourth Proportional to 26,737.60, 40,120.80 and 11,948.80

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Solution

The fourth proportional to 26,737.60, 40,120.80 and 11,948.80 is: 17,929.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,737.60 : 40,120.80 = 11,948.80 : x
  2. Step 2: Convert to fraction form
    26,737.60/40,120.80 = 11,948.80/x
  3. Step 3: Cross multiply
    26,737.60x = 40,120.80 × 11,948.80
  4. Step 4: Simplify right side
    26,737.60x = 479,395,415.04
  5. Step 5: Solve for x
    x = 479,395,415.04/26,737.60
  6. Step 6: Final answer
    x = 17,929.64

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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.