Home / 31,935.36-47,906.52-12,230.64

Finding the Fourth Proportional to 31,935.36, 47,906.52 and 12,230.64

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Solution

The fourth proportional to 31,935.36, 47,906.52 and 12,230.64 is: 18,347.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,935.36 : 47,906.52 = 12,230.64 : x
  2. Step 2: Convert to fraction form
    31,935.36/47,906.52 = 12,230.64/x
  3. Step 3: Cross multiply
    31,935.36x = 47,906.52 × 12,230.64
  4. Step 4: Simplify right side
    31,935.36x = 585,927,399.77
  5. Step 5: Solve for x
    x = 585,927,399.77/31,935.36
  6. Step 6: Final answer
    x = 18,347.29

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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.