Home / 31,695.60-47,530.64-11,963.42

Finding the Fourth Proportional to 31,695.60, 47,530.64 and 11,963.42

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Solution

The fourth proportional to 31,695.60, 47,530.64 and 11,963.42 is: 17,940.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,695.60 : 47,530.64 = 11,963.42 : x
  2. Step 2: Convert to fraction form
    31,695.60/47,530.64 = 11,963.42/x
  3. Step 3: Cross multiply
    31,695.60x = 47,530.64 × 11,963.42
  4. Step 4: Simplify right side
    31,695.60x = 568,629,009.19
  5. Step 5: Solve for x
    x = 568,629,009.19/31,695.60
  6. Step 6: Final answer
    x = 17,940.31

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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.