Home / 20,568.92-28,374.66-12,065.48

Finding the Fourth Proportional to 20,568.92, 28,374.66 and 12,065.48

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Solution

The fourth proportional to 20,568.92, 28,374.66 and 12,065.48 is: 16,644.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568.92 : 28,374.66 = 12,065.48 : x
  2. Step 2: Convert to fraction form
    20,568.92/28,374.66 = 12,065.48/x
  3. Step 3: Cross multiply
    20,568.92x = 28,374.66 × 12,065.48
  4. Step 4: Simplify right side
    20,568.92x = 342,353,892.74
  5. Step 5: Solve for x
    x = 342,353,892.74/20,568.92
  6. Step 6: Final answer
    x = 16,644.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.