Home / 33,219.60-45,841.32-20,644.08

Finding the Fourth Proportional to 33,219.60, 45,841.32 and 20,644.08

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Solution

The fourth proportional to 33,219.60, 45,841.32 and 20,644.08 is: 28,487.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,219.60 : 45,841.32 = 20,644.08 : x
  2. Step 2: Convert to fraction form
    33,219.60/45,841.32 = 20,644.08/x
  3. Step 3: Cross multiply
    33,219.60x = 45,841.32 × 20,644.08
  4. Step 4: Simplify right side
    33,219.60x = 946,351,877.39
  5. Step 5: Solve for x
    x = 946,351,877.39/33,219.60
  6. Step 6: Final answer
    x = 28,487.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.