Home / 31,942.16-47,921.88-18,100.88

Finding the Fourth Proportional to 31,942.16, 47,921.88 and 18,100.88

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Solution

The fourth proportional to 31,942.16, 47,921.88 and 18,100.88 is: 27,156.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,942.16 : 47,921.88 = 18,100.88 : x
  2. Step 2: Convert to fraction form
    31,942.16/47,921.88 = 18,100.88/x
  3. Step 3: Cross multiply
    31,942.16x = 47,921.88 × 18,100.88
  4. Step 4: Simplify right side
    31,942.16x = 867,428,199.25
  5. Step 5: Solve for x
    x = 867,428,199.25/31,942.16
  6. Step 6: Final answer
    x = 27,156.22

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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.