Home / 21,141.03-29,173.49-11,580.42

Finding the Fourth Proportional to 21,141.03, 29,173.49 and 11,580.42

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Solution

The fourth proportional to 21,141.03, 29,173.49 and 11,580.42 is: 15,980.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,141.03 : 29,173.49 = 11,580.42 : x
  2. Step 2: Convert to fraction form
    21,141.03/29,173.49 = 11,580.42/x
  3. Step 3: Cross multiply
    21,141.03x = 29,173.49 × 11,580.42
  4. Step 4: Simplify right side
    21,141.03x = 337,841,209.16
  5. Step 5: Solve for x
    x = 337,841,209.16/21,141.03
  6. Step 6: Final answer
    x = 15,980.36

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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.