Home / 21,224.60-29,288.52-11,664.28

Finding the Fourth Proportional to 21,224.60, 29,288.52 and 11,664.28

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Solution

The fourth proportional to 21,224.60, 29,288.52 and 11,664.28 is: 16,095.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,224.60 : 29,288.52 = 11,664.28 : x
  2. Step 2: Convert to fraction form
    21,224.60/29,288.52 = 11,664.28/x
  3. Step 3: Cross multiply
    21,224.60x = 29,288.52 × 11,664.28
  4. Step 4: Simplify right side
    21,224.60x = 341,629,452.30
  5. Step 5: Solve for x
    x = 341,629,452.30/21,224.60
  6. Step 6: Final answer
    x = 16,095.92

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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.