Home / 43,333.42-64,976.64-19,939

Finding the Fourth Proportional to 43,333.42, 64,976.64 and 19,939

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Solution

The fourth proportional to 43,333.42, 64,976.64 and 19,939 is: 29,897.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,333.42 : 64,976.64 = 19,939 : x
  2. Step 2: Convert to fraction form
    43,333.42/64,976.64 = 19,939/x
  3. Step 3: Cross multiply
    43,333.42x = 64,976.64 × 19,939
  4. Step 4: Simplify right side
    43,333.42x = 1,295,569,224.96
  5. Step 5: Solve for x
    x = 1,295,569,224.96/43,333.42
  6. Step 6: Final answer
    x = 29,897.69

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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.