Home / 43,921.08-65,861.70-18,949.32

Finding the Fourth Proportional to 43,921.08, 65,861.70 and 18,949.32

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Solution

The fourth proportional to 43,921.08, 65,861.70 and 18,949.32 is: 28,415.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,921.08 : 65,861.70 = 18,949.32 : x
  2. Step 2: Convert to fraction form
    43,921.08/65,861.70 = 18,949.32/x
  3. Step 3: Cross multiply
    43,921.08x = 65,861.70 × 18,949.32
  4. Step 4: Simplify right side
    43,921.08x = 1,248,034,429.04
  5. Step 5: Solve for x
    x = 1,248,034,429.04/43,921.08
  6. Step 6: Final answer
    x = 28,415.39

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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.