Home / 31,921.34-47,903.85-11,144.84

Finding the Fourth Proportional to 31,921.34, 47,903.85 and 11,144.84

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Solution

The fourth proportional to 31,921.34, 47,903.85 and 11,144.84 is: 16,724.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,921.34 : 47,903.85 = 11,144.84 : x
  2. Step 2: Convert to fraction form
    31,921.34/47,903.85 = 11,144.84/x
  3. Step 3: Cross multiply
    31,921.34x = 47,903.85 × 11,144.84
  4. Step 4: Simplify right side
    31,921.34x = 533,880,504.11
  5. Step 5: Solve for x
    x = 533,880,504.11/31,921.34
  6. Step 6: Final answer
    x = 16,724.88

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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.