Home / 43,134.78-64,718.64-16,857.84

Finding the Fourth Proportional to 43,134.78, 64,718.64 and 16,857.84

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Solution

The fourth proportional to 43,134.78, 64,718.64 and 16,857.84 is: 25,293.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,134.78 : 64,718.64 = 16,857.84 : x
  2. Step 2: Convert to fraction form
    43,134.78/64,718.64 = 16,857.84/x
  3. Step 3: Cross multiply
    43,134.78x = 64,718.64 × 16,857.84
  4. Step 4: Simplify right side
    43,134.78x = 1,091,016,478.14
  5. Step 5: Solve for x
    x = 1,091,016,478.14/43,134.78
  6. Step 6: Final answer
    x = 25,293.20

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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.