Home / 42,816.20-64,236.65-17,843.36

Finding the Fourth Proportional to 42,816.20, 64,236.65 and 17,843.36

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Solution

The fourth proportional to 42,816.20, 64,236.65 and 17,843.36 is: 26,770.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,816.20 : 64,236.65 = 17,843.36 : x
  2. Step 2: Convert to fraction form
    42,816.20/64,236.65 = 17,843.36/x
  3. Step 3: Cross multiply
    42,816.20x = 64,236.65 × 17,843.36
  4. Step 4: Simplify right side
    42,816.20x = 1,146,197,260.74
  5. Step 5: Solve for x
    x = 1,146,197,260.74/42,816.20
  6. Step 6: Final answer
    x = 26,770.18

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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.