Home / 21,025.20-29,015.08-11,593.76

Finding the Fourth Proportional to 21,025.20, 29,015.08 and 11,593.76

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Solution

The fourth proportional to 21,025.20, 29,015.08 and 11,593.76 is: 15,999.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,025.20 : 29,015.08 = 11,593.76 : x
  2. Step 2: Convert to fraction form
    21,025.20/29,015.08 = 11,593.76/x
  3. Step 3: Cross multiply
    21,025.20x = 29,015.08 × 11,593.76
  4. Step 4: Simplify right side
    21,025.20x = 336,393,873.90
  5. Step 5: Solve for x
    x = 336,393,873.90/21,025.20
  6. Step 6: Final answer
    x = 15,999.56

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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.