Home / 20,471.37-30,707.10-6,239.97

Finding the Fourth Proportional to 20,471.37, 30,707.10 and 6,239.97

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Solution

The fourth proportional to 20,471.37, 30,707.10 and 6,239.97 is: 9,359.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,471.37 : 30,707.10 = 6,239.97 : x
  2. Step 2: Convert to fraction form
    20,471.37/30,707.10 = 6,239.97/x
  3. Step 3: Cross multiply
    20,471.37x = 30,707.10 × 6,239.97
  4. Step 4: Simplify right side
    20,471.37x = 191,611,382.79
  5. Step 5: Solve for x
    x = 191,611,382.79/20,471.37
  6. Step 6: Final answer
    x = 9,359.97

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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.