Home / 20,724.70-31,090.14-7,396.66

Finding the Fourth Proportional to 20,724.70, 31,090.14 and 7,396.66

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Solution

The fourth proportional to 20,724.70, 31,090.14 and 7,396.66 is: 11,096.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.70 : 31,090.14 = 7,396.66 : x
  2. Step 2: Convert to fraction form
    20,724.70/31,090.14 = 7,396.66/x
  3. Step 3: Cross multiply
    20,724.70x = 31,090.14 × 7,396.66
  4. Step 4: Simplify right side
    20,724.70x = 229,963,194.93
  5. Step 5: Solve for x
    x = 229,963,194.93/20,724.70
  6. Step 6: Final answer
    x = 11,096.09

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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.