Home / 31,921.52-44,072.04-21,866.96

Finding the Fourth Proportional to 31,921.52, 44,072.04 and 21,866.96

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Solution

The fourth proportional to 31,921.52, 44,072.04 and 21,866.96 is: 30,190.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,921.52 : 44,072.04 = 21,866.96 : x
  2. Step 2: Convert to fraction form
    31,921.52/44,072.04 = 21,866.96/x
  3. Step 3: Cross multiply
    31,921.52x = 44,072.04 × 21,866.96
  4. Step 4: Simplify right side
    31,921.52x = 963,721,535.80
  5. Step 5: Solve for x
    x = 963,721,535.80/31,921.52
  6. Step 6: Final answer
    x = 30,190.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.