Home / 20,685.92-31,028.94-5,693.24

Finding the Fourth Proportional to 20,685.92, 31,028.94 and 5,693.24

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Solution

The fourth proportional to 20,685.92, 31,028.94 and 5,693.24 is: 8,539.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,685.92 : 31,028.94 = 5,693.24 : x
  2. Step 2: Convert to fraction form
    20,685.92/31,028.94 = 5,693.24/x
  3. Step 3: Cross multiply
    20,685.92x = 31,028.94 × 5,693.24
  4. Step 4: Simplify right side
    20,685.92x = 176,655,105.40
  5. Step 5: Solve for x
    x = 176,655,105.40/20,685.92
  6. Step 6: Final answer
    x = 8,539.87

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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.