Home / 20,117.42-27,762.20-12,164.94

Finding the Fourth Proportional to 20,117.42, 27,762.20 and 12,164.94

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Solution

The fourth proportional to 20,117.42, 27,762.20 and 12,164.94 is: 16,787.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117.42 : 27,762.20 = 12,164.94 : x
  2. Step 2: Convert to fraction form
    20,117.42/27,762.20 = 12,164.94/x
  3. Step 3: Cross multiply
    20,117.42x = 27,762.20 × 12,164.94
  4. Step 4: Simplify right side
    20,117.42x = 337,725,497.27
  5. Step 5: Solve for x
    x = 337,725,497.27/20,117.42
  6. Step 6: Final answer
    x = 16,787.71

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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.