Home / 21,028.32-29,018.71-11,468.28

Finding the Fourth Proportional to 21,028.32, 29,018.71 and 11,468.28

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Solution

The fourth proportional to 21,028.32, 29,018.71 and 11,468.28 is: 15,826.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,028.32 : 29,018.71 = 11,468.28 : x
  2. Step 2: Convert to fraction form
    21,028.32/29,018.71 = 11,468.28/x
  3. Step 3: Cross multiply
    21,028.32x = 29,018.71 × 11,468.28
  4. Step 4: Simplify right side
    21,028.32x = 332,794,691.52
  5. Step 5: Solve for x
    x = 332,794,691.52/21,028.32
  6. Step 6: Final answer
    x = 15,826.02

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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.