Home / 20,684.96-30,886.94-20,124.44

Finding the Fourth Proportional to 20,684.96, 30,886.94 and 20,124.44

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Solution

The fourth proportional to 20,684.96, 30,886.94 and 20,124.44 is: 30,049.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,684.96 : 30,886.94 = 20,124.44 : x
  2. Step 2: Convert to fraction form
    20,684.96/30,886.94 = 20,124.44/x
  3. Step 3: Cross multiply
    20,684.96x = 30,886.94 × 20,124.44
  4. Step 4: Simplify right side
    20,684.96x = 621,582,370.81
  5. Step 5: Solve for x
    x = 621,582,370.81/20,684.96
  6. Step 6: Final answer
    x = 30,049.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.