Home / 43,260.59-64,890.50-13,678.44

Finding the Fourth Proportional to 43,260.59, 64,890.50 and 13,678.44

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Solution

The fourth proportional to 43,260.59, 64,890.50 and 13,678.44 is: 20,517.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,260.59 : 64,890.50 = 13,678.44 : x
  2. Step 2: Convert to fraction form
    43,260.59/64,890.50 = 13,678.44/x
  3. Step 3: Cross multiply
    43,260.59x = 64,890.50 × 13,678.44
  4. Step 4: Simplify right side
    43,260.59x = 887,600,742.43
  5. Step 5: Solve for x
    x = 887,600,742.43/43,260.59
  6. Step 6: Final answer
    x = 20,517.54

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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.