Home / 43,857.84-65,796.60-20,471.52

Finding the Fourth Proportional to 43,857.84, 65,796.60 and 20,471.52

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Solution

The fourth proportional to 43,857.84, 65,796.60 and 20,471.52 is: 30,711.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,857.84 : 65,796.60 = 20,471.52 : x
  2. Step 2: Convert to fraction form
    43,857.84/65,796.60 = 20,471.52/x
  3. Step 3: Cross multiply
    43,857.84x = 65,796.60 × 20,471.52
  4. Step 4: Simplify right side
    43,857.84x = 1,346,956,412.83
  5. Step 5: Solve for x
    x = 1,346,956,412.83/43,857.84
  6. Step 6: Final answer
    x = 30,711.87

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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.