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Finding the Fourth Proportional to 33,545, 46,280.30 and 20,120.60

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Solution

The fourth proportional to 33,545, 46,280.30 and 20,120.60 is: 27,759.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,545 : 46,280.30 = 20,120.60 : x
  2. Step 2: Convert to fraction form
    33,545/46,280.30 = 20,120.60/x
  3. Step 3: Cross multiply
    33,545x = 46,280.30 × 20,120.60
  4. Step 4: Simplify right side
    33,545x = 931,187,404.18
  5. Step 5: Solve for x
    x = 931,187,404.18/33,545
  6. Step 6: Final answer
    x = 27,759.35

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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.