Home / 21,157.38-29,195.61-11,595.74

Finding the Fourth Proportional to 21,157.38, 29,195.61 and 11,595.74

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Solution

The fourth proportional to 21,157.38, 29,195.61 and 11,595.74 is: 16,001.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,157.38 : 29,195.61 = 11,595.74 : x
  2. Step 2: Convert to fraction form
    21,157.38/29,195.61 = 11,595.74/x
  3. Step 3: Cross multiply
    21,157.38x = 29,195.61 × 11,595.74
  4. Step 4: Simplify right side
    21,157.38x = 338,544,556.72
  5. Step 5: Solve for x
    x = 338,544,556.72/21,157.38
  6. Step 6: Final answer
    x = 16,001.25

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Double scale
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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.