Home / 42,796.64-64,194.78-11,631.80

Finding the Fourth Proportional to 42,796.64, 64,194.78 and 11,631.80

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Solution

The fourth proportional to 42,796.64, 64,194.78 and 11,631.80 is: 17,447.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,796.64 : 64,194.78 = 11,631.80 : x
  2. Step 2: Convert to fraction form
    42,796.64/64,194.78 = 11,631.80/x
  3. Step 3: Cross multiply
    42,796.64x = 64,194.78 × 11,631.80
  4. Step 4: Simplify right side
    42,796.64x = 746,700,842.00
  5. Step 5: Solve for x
    x = 746,700,842.00/42,796.64
  6. Step 6: Final answer
    x = 17,447.65

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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.