Home / 43,234.20-64,844.55-13,659.21

Finding the Fourth Proportional to 43,234.20, 64,844.55 and 13,659.21

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Solution

The fourth proportional to 43,234.20, 64,844.55 and 13,659.21 is: 20,486.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,234.20 : 64,844.55 = 13,659.21 : x
  2. Step 2: Convert to fraction form
    43,234.20/64,844.55 = 13,659.21/x
  3. Step 3: Cross multiply
    43,234.20x = 64,844.55 × 13,659.21
  4. Step 4: Simplify right side
    43,234.20x = 885,725,325.81
  5. Step 5: Solve for x
    x = 885,725,325.81/43,234.20
  6. Step 6: Final answer
    x = 20,486.68

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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.