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Finding the Fourth Proportional to 20,574.68, 30,867.60 and 6,723.68

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Solution

The fourth proportional to 20,574.68, 30,867.60 and 6,723.68 is: 10,087.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,574.68 : 30,867.60 = 6,723.68 : x
  2. Step 2: Convert to fraction form
    20,574.68/30,867.60 = 6,723.68/x
  3. Step 3: Cross multiply
    20,574.68x = 30,867.60 × 6,723.68
  4. Step 4: Simplify right side
    20,574.68x = 207,543,864.77
  5. Step 5: Solve for x
    x = 207,543,864.77/20,574.68
  6. Step 6: Final answer
    x = 10,087.34

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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.