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Finding the Fourth Proportional to 33,114.40, 49,671.60 and 10,931.20

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Solution

The fourth proportional to 33,114.40, 49,671.60 and 10,931.20 is: 16,396.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,114.40 : 49,671.60 = 10,931.20 : x
  2. Step 2: Convert to fraction form
    33,114.40/49,671.60 = 10,931.20/x
  3. Step 3: Cross multiply
    33,114.40x = 49,671.60 × 10,931.20
  4. Step 4: Simplify right side
    33,114.40x = 542,970,193.92
  5. Step 5: Solve for x
    x = 542,970,193.92/33,114.40
  6. Step 6: Final answer
    x = 16,396.80

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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.