Home / 21,196.62-29,251.45-13,243.46

Finding the Fourth Proportional to 21,196.62, 29,251.45 and 13,243.46

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Solution

The fourth proportional to 21,196.62, 29,251.45 and 13,243.46 is: 18,276.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,196.62 : 29,251.45 = 13,243.46 : x
  2. Step 2: Convert to fraction form
    21,196.62/29,251.45 = 13,243.46/x
  3. Step 3: Cross multiply
    21,196.62x = 29,251.45 × 13,243.46
  4. Step 4: Simplify right side
    21,196.62x = 387,390,203.82
  5. Step 5: Solve for x
    x = 387,390,203.82/21,196.62
  6. Step 6: Final answer
    x = 18,276.04

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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.