Home / 21,150.24-29,184-11,718.48

Finding the Fourth Proportional to 21,150.24, 29,184 and 11,718.48

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Solution

The fourth proportional to 21,150.24, 29,184 and 11,718.48 is: 16,169.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,150.24 : 29,184 = 11,718.48 : x
  2. Step 2: Convert to fraction form
    21,150.24/29,184 = 11,718.48/x
  3. Step 3: Cross multiply
    21,150.24x = 29,184 × 11,718.48
  4. Step 4: Simplify right side
    21,150.24x = 341,992,120.32
  5. Step 5: Solve for x
    x = 341,992,120.32/21,150.24
  6. Step 6: Final answer
    x = 16,169.66

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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.