Home / 31,954.68-47,953.62-11,178.36

Finding the Fourth Proportional to 31,954.68, 47,953.62 and 11,178.36

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Solution

The fourth proportional to 31,954.68, 47,953.62 and 11,178.36 is: 16,775.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,954.68 : 47,953.62 = 11,178.36 : x
  2. Step 2: Convert to fraction form
    31,954.68/47,953.62 = 11,178.36/x
  3. Step 3: Cross multiply
    31,954.68x = 47,953.62 × 11,178.36
  4. Step 4: Simplify right side
    31,954.68x = 536,042,827.66
  5. Step 5: Solve for x
    x = 536,042,827.66/31,954.68
  6. Step 6: Final answer
    x = 16,775.10

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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.