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Finding the Fourth Proportional to 33,365.84, 50,041.28 and 9,989.28

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Solution

The fourth proportional to 33,365.84, 50,041.28 and 9,989.28 is: 14,981.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,365.84 : 50,041.28 = 9,989.28 : x
  2. Step 2: Convert to fraction form
    33,365.84/50,041.28 = 9,989.28/x
  3. Step 3: Cross multiply
    33,365.84x = 50,041.28 × 9,989.28
  4. Step 4: Simplify right side
    33,365.84x = 499,876,357.48
  5. Step 5: Solve for x
    x = 499,876,357.48/33,365.84
  6. Step 6: Final answer
    x = 14,981.68

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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.