Home / 20,724.94-31,091.10-9,644.14

Finding the Fourth Proportional to 20,724.94, 31,091.10 and 9,644.14

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Solution

The fourth proportional to 20,724.94, 31,091.10 and 9,644.14 is: 14,467.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.94 : 31,091.10 = 9,644.14 : x
  2. Step 2: Convert to fraction form
    20,724.94/31,091.10 = 9,644.14/x
  3. Step 3: Cross multiply
    20,724.94x = 31,091.10 × 9,644.14
  4. Step 4: Simplify right side
    20,724.94x = 299,846,921.15
  5. Step 5: Solve for x
    x = 299,846,921.15/20,724.94
  6. Step 6: Final answer
    x = 14,467.93

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1.5x scale

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.