Home / 20,723.14-31,087.79-7,395.10

Finding the Fourth Proportional to 20,723.14, 31,087.79 and 7,395.10

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Solution

The fourth proportional to 20,723.14, 31,087.79 and 7,395.10 is: 11,093.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.14 : 31,087.79 = 7,395.10 : x
  2. Step 2: Convert to fraction form
    20,723.14/31,087.79 = 7,395.10/x
  3. Step 3: Cross multiply
    20,723.14x = 31,087.79 × 7,395.10
  4. Step 4: Simplify right side
    20,723.14x = 229,897,228.87
  5. Step 5: Solve for x
    x = 229,897,228.87/20,723.14
  6. Step 6: Final answer
    x = 11,093.74

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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.