Home / 21,200.16-29,256.48-11,769.60

Finding the Fourth Proportional to 21,200.16, 29,256.48 and 11,769.60

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Solution

The fourth proportional to 21,200.16, 29,256.48 and 11,769.60 is: 16,242.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,200.16 : 29,256.48 = 11,769.60 : x
  2. Step 2: Convert to fraction form
    21,200.16/29,256.48 = 11,769.60/x
  3. Step 3: Cross multiply
    21,200.16x = 29,256.48 × 11,769.60
  4. Step 4: Simplify right side
    21,200.16x = 344,337,067.01
  5. Step 5: Solve for x
    x = 344,337,067.01/21,200.16
  6. Step 6: Final answer
    x = 16,242.19

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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.