Home / 33,045.64-45,640.83-21,765.55

Finding the Fourth Proportional to 33,045.64, 45,640.83 and 21,765.55

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Solution

The fourth proportional to 33,045.64, 45,640.83 and 21,765.55 is: 30,061.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,045.64 : 45,640.83 = 21,765.55 : x
  2. Step 2: Convert to fraction form
    33,045.64/45,640.83 = 21,765.55/x
  3. Step 3: Cross multiply
    33,045.64x = 45,640.83 × 21,765.55
  4. Step 4: Simplify right side
    33,045.64x = 993,397,767.41
  5. Step 5: Solve for x
    x = 993,397,767.41/33,045.64
  6. Step 6: Final answer
    x = 30,061.39

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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.