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Finding the Fourth Proportional to 43,902.09, 65,854.80 and 20,522.25

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Solution

The fourth proportional to 43,902.09, 65,854.80 and 20,522.25 is: 30,784.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,902.09 : 65,854.80 = 20,522.25 : x
  2. Step 2: Convert to fraction form
    43,902.09/65,854.80 = 20,522.25/x
  3. Step 3: Cross multiply
    43,902.09x = 65,854.80 × 20,522.25
  4. Step 4: Simplify right side
    43,902.09x = 1,351,488,669.30
  5. Step 5: Solve for x
    x = 1,351,488,669.30/43,902.09
  6. Step 6: Final answer
    x = 30,784.15

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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.