Home / 21,200.48-29,255.76-11,769.64

Finding the Fourth Proportional to 21,200.48, 29,255.76 and 11,769.64

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Solution

The fourth proportional to 21,200.48, 29,255.76 and 11,769.64 is: 16,241.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,200.48 : 29,255.76 = 11,769.64 : x
  2. Step 2: Convert to fraction form
    21,200.48/29,255.76 = 11,769.64/x
  3. Step 3: Cross multiply
    21,200.48x = 29,255.76 × 11,769.64
  4. Step 4: Simplify right side
    21,200.48x = 344,329,763.13
  5. Step 5: Solve for x
    x = 344,329,763.13/21,200.48
  6. Step 6: Final answer
    x = 16,241.60

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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.