Home / 43,807.21-65,709.87-12,216.43

Finding the Fourth Proportional to 43,807.21, 65,709.87 and 12,216.43

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Solution

The fourth proportional to 43,807.21, 65,709.87 and 12,216.43 is: 18,324.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,807.21 : 65,709.87 = 12,216.43 : x
  2. Step 2: Convert to fraction form
    43,807.21/65,709.87 = 12,216.43/x
  3. Step 3: Cross multiply
    43,807.21x = 65,709.87 × 12,216.43
  4. Step 4: Simplify right side
    43,807.21x = 802,740,151.79
  5. Step 5: Solve for x
    x = 802,740,151.79/43,807.21
  6. Step 6: Final answer
    x = 18,324.38

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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.