Home / 20,173.92-27,835.80-12,216.72

Finding the Fourth Proportional to 20,173.92, 27,835.80 and 12,216.72

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Solution

The fourth proportional to 20,173.92, 27,835.80 and 12,216.72 is: 16,856.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,173.92 : 27,835.80 = 12,216.72 : x
  2. Step 2: Convert to fraction form
    20,173.92/27,835.80 = 12,216.72/x
  3. Step 3: Cross multiply
    20,173.92x = 27,835.80 × 12,216.72
  4. Step 4: Simplify right side
    20,173.92x = 340,062,174.58
  5. Step 5: Solve for x
    x = 340,062,174.58/20,173.92
  6. Step 6: Final answer
    x = 16,856.52

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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.