Home / 20,001.62-27,601.40-11,503.10

Finding the Fourth Proportional to 20,001.62, 27,601.40 and 11,503.10

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Solution

The fourth proportional to 20,001.62, 27,601.40 and 11,503.10 is: 15,873.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,001.62 : 27,601.40 = 11,503.10 : x
  2. Step 2: Convert to fraction form
    20,001.62/27,601.40 = 11,503.10/x
  3. Step 3: Cross multiply
    20,001.62x = 27,601.40 × 11,503.10
  4. Step 4: Simplify right side
    20,001.62x = 317,501,468.82
  5. Step 5: Solve for x
    x = 317,501,468.82/20,001.62
  6. Step 6: Final answer
    x = 15,873.79

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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.