Home / 43,875.43-65,788.83-20,489.11

Finding the Fourth Proportional to 43,875.43, 65,788.83 and 20,489.11

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Solution

The fourth proportional to 43,875.43, 65,788.83 and 20,489.11 is: 30,722.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,875.43 : 65,788.83 = 20,489.11 : x
  2. Step 2: Convert to fraction form
    43,875.43/65,788.83 = 20,489.11/x
  3. Step 3: Cross multiply
    43,875.43x = 65,788.83 × 20,489.11
  4. Step 4: Simplify right side
    43,875.43x = 1,347,954,574.64
  5. Step 5: Solve for x
    x = 1,347,954,574.64/43,875.43
  6. Step 6: Final answer
    x = 30,722.31

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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.