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Finding the Fourth Proportional to 33,685.40, 50,552.40 and 18,878.60

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Solution

The fourth proportional to 33,685.40, 50,552.40 and 18,878.60 is: 28,331.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,685.40 : 50,552.40 = 18,878.60 : x
  2. Step 2: Convert to fraction form
    33,685.40/50,552.40 = 18,878.60/x
  3. Step 3: Cross multiply
    33,685.40x = 50,552.40 × 18,878.60
  4. Step 4: Simplify right side
    33,685.40x = 954,358,538.64
  5. Step 5: Solve for x
    x = 954,358,538.64/33,685.40
  6. Step 6: Final answer
    x = 28,331.52

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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.