Home / 21,135.24-29,166.84-11,704.32

Finding the Fourth Proportional to 21,135.24, 29,166.84 and 11,704.32

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Solution

The fourth proportional to 21,135.24, 29,166.84 and 11,704.32 is: 16,152.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,135.24 : 29,166.84 = 11,704.32 : x
  2. Step 2: Convert to fraction form
    21,135.24/29,166.84 = 11,704.32/x
  3. Step 3: Cross multiply
    21,135.24x = 29,166.84 × 11,704.32
  4. Step 4: Simplify right side
    21,135.24x = 341,378,028.75
  5. Step 5: Solve for x
    x = 341,378,028.75/21,135.24
  6. Step 6: Final answer
    x = 16,152.08

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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.