Home / 31,935.52-47,921.73-14,405.34

Finding the Fourth Proportional to 31,935.52, 47,921.73 and 14,405.34

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Solution

The fourth proportional to 31,935.52, 47,921.73 and 14,405.34 is: 21,616.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,935.52 : 47,921.73 = 14,405.34 : x
  2. Step 2: Convert to fraction form
    31,935.52/47,921.73 = 14,405.34/x
  3. Step 3: Cross multiply
    31,935.52x = 47,921.73 × 14,405.34
  4. Step 4: Simplify right side
    31,935.52x = 690,328,939.72
  5. Step 5: Solve for x
    x = 690,328,939.72/31,935.52
  6. Step 6: Final answer
    x = 21,616.34

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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.