Home / 43,838.31-65,767.20-20,451.99

Finding the Fourth Proportional to 43,838.31, 65,767.20 and 20,451.99

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Solution

The fourth proportional to 43,838.31, 65,767.20 and 20,451.99 is: 30,682.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,838.31 : 65,767.20 = 20,451.99 : x
  2. Step 2: Convert to fraction form
    43,838.31/65,767.20 = 20,451.99/x
  3. Step 3: Cross multiply
    43,838.31x = 65,767.20 × 20,451.99
  4. Step 4: Simplify right side
    43,838.31x = 1,345,069,946.80
  5. Step 5: Solve for x
    x = 1,345,069,946.80/43,838.31
  6. Step 6: Final answer
    x = 30,682.53

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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.