Home / 20,001.81-27,601.35-11,944.55

Finding the Fourth Proportional to 20,001.81, 27,601.35 and 11,944.55

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Solution

The fourth proportional to 20,001.81, 27,601.35 and 11,944.55 is: 16,482.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,001.81 : 27,601.35 = 11,944.55 : x
  2. Step 2: Convert to fraction form
    20,001.81/27,601.35 = 11,944.55/x
  3. Step 3: Cross multiply
    20,001.81x = 27,601.35 × 11,944.55
  4. Step 4: Simplify right side
    20,001.81x = 329,685,705.14
  5. Step 5: Solve for x
    x = 329,685,705.14/20,001.81
  6. Step 6: Final answer
    x = 16,482.79

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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.