Home / 33,280.70-45,915.59-21,350.48

Finding the Fourth Proportional to 33,280.70, 45,915.59 and 21,350.48

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Solution

The fourth proportional to 33,280.70, 45,915.59 and 21,350.48 is: 29,456.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,280.70 : 45,915.59 = 21,350.48 : x
  2. Step 2: Convert to fraction form
    33,280.70/45,915.59 = 21,350.48/x
  3. Step 3: Cross multiply
    33,280.70x = 45,915.59 × 21,350.48
  4. Step 4: Simplify right side
    33,280.70x = 980,319,709.78
  5. Step 5: Solve for x
    x = 980,319,709.78/33,280.70
  6. Step 6: Final answer
    x = 29,456.11

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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.