Home / 20,132.34-27,785.18-12,174.61

Finding the Fourth Proportional to 20,132.34, 27,785.18 and 12,174.61

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Solution

The fourth proportional to 20,132.34, 27,785.18 and 12,174.61 is: 16,802.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.34 : 27,785.18 = 12,174.61 : x
  2. Step 2: Convert to fraction form
    20,132.34/27,785.18 = 12,174.61/x
  3. Step 3: Cross multiply
    20,132.34x = 27,785.18 × 12,174.61
  4. Step 4: Simplify right side
    20,132.34x = 338,273,674.87
  5. Step 5: Solve for x
    x = 338,273,674.87/20,132.34
  6. Step 6: Final answer
    x = 16,802.50

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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.