Home / 21,027.32-29,017.33-11,467.28

Finding the Fourth Proportional to 21,027.32, 29,017.33 and 11,467.28

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Solution

The fourth proportional to 21,027.32, 29,017.33 and 11,467.28 is: 15,824.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,027.32 : 29,017.33 = 11,467.28 : x
  2. Step 2: Convert to fraction form
    21,027.32/29,017.33 = 11,467.28/x
  3. Step 3: Cross multiply
    21,027.32x = 29,017.33 × 11,467.28
  4. Step 4: Simplify right side
    21,027.32x = 332,749,760.87
  5. Step 5: Solve for x
    x = 332,749,760.87/21,027.32
  6. Step 6: Final answer
    x = 15,824.64

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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.