Home / 20,164.47-27,827.90-11,211.83

Finding the Fourth Proportional to 20,164.47, 27,827.90 and 11,211.83

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Solution

The fourth proportional to 20,164.47, 27,827.90 and 11,211.83 is: 15,472.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.47 : 27,827.90 = 11,211.83 : x
  2. Step 2: Convert to fraction form
    20,164.47/27,827.90 = 11,211.83/x
  3. Step 3: Cross multiply
    20,164.47x = 27,827.90 × 11,211.83
  4. Step 4: Simplify right side
    20,164.47x = 312,001,684.06
  5. Step 5: Solve for x
    x = 312,001,684.06/20,164.47
  6. Step 6: Final answer
    x = 15,472.84

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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.