Home / 20,166.40-27,827.11-11,212.76

Finding the Fourth Proportional to 20,166.40, 27,827.11 and 11,212.76

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Solution

The fourth proportional to 20,166.40, 27,827.11 and 11,212.76 is: 15,472.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.40 : 27,827.11 = 11,212.76 : x
  2. Step 2: Convert to fraction form
    20,166.40/27,827.11 = 11,212.76/x
  3. Step 3: Cross multiply
    20,166.40x = 27,827.11 × 11,212.76
  4. Step 4: Simplify right side
    20,166.40x = 312,018,705.92
  5. Step 5: Solve for x
    x = 312,018,705.92/20,166.40
  6. Step 6: Final answer
    x = 15,472.21

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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.