Home / 20,174.69-27,837.67-11,221.01

Finding the Fourth Proportional to 20,174.69, 27,837.67 and 11,221.01

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Solution

The fourth proportional to 20,174.69, 27,837.67 and 11,221.01 is: 15,483.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,174.69 : 27,837.67 = 11,221.01 : x
  2. Step 2: Convert to fraction form
    20,174.69/27,837.67 = 11,221.01/x
  3. Step 3: Cross multiply
    20,174.69x = 27,837.67 × 11,221.01
  4. Step 4: Simplify right side
    20,174.69x = 312,366,773.45
  5. Step 5: Solve for x
    x = 312,366,773.45/20,174.69
  6. Step 6: Final answer
    x = 15,483.10

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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.