Home / 21,203.62-29,259.85-11,771.57

Finding the Fourth Proportional to 21,203.62, 29,259.85 and 11,771.57

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Solution

The fourth proportional to 21,203.62, 29,259.85 and 11,771.57 is: 16,244.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,203.62 : 29,259.85 = 11,771.57 : x
  2. Step 2: Convert to fraction form
    21,203.62/29,259.85 = 11,771.57/x
  3. Step 3: Cross multiply
    21,203.62x = 29,259.85 × 11,771.57
  4. Step 4: Simplify right side
    21,203.62x = 344,434,343.04
  5. Step 5: Solve for x
    x = 344,434,343.04/21,203.62
  6. Step 6: Final answer
    x = 16,244.13

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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.