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Finding the Fourth Proportional to 43,955.82, 65,923.68 and 20,240.64

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Solution

The fourth proportional to 43,955.82, 65,923.68 and 20,240.64 is: 30,356.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,955.82 : 65,923.68 = 20,240.64 : x
  2. Step 2: Convert to fraction form
    43,955.82/65,923.68 = 20,240.64/x
  3. Step 3: Cross multiply
    43,955.82x = 65,923.68 × 20,240.64
  4. Step 4: Simplify right side
    43,955.82x = 1,334,337,144.74
  5. Step 5: Solve for x
    x = 1,334,337,144.74/43,955.82
  6. Step 6: Final answer
    x = 30,356.33

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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.