Home / 21,258.96-29,335.50-11,828.04

Finding the Fourth Proportional to 21,258.96, 29,335.50 and 11,828.04

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Solution

The fourth proportional to 21,258.96, 29,335.50 and 11,828.04 is: 16,321.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,258.96 : 29,335.50 = 11,828.04 : x
  2. Step 2: Convert to fraction form
    21,258.96/29,335.50 = 11,828.04/x
  3. Step 3: Cross multiply
    21,258.96x = 29,335.50 × 11,828.04
  4. Step 4: Simplify right side
    21,258.96x = 346,981,467.42
  5. Step 5: Solve for x
    x = 346,981,467.42/21,258.96
  6. Step 6: Final answer
    x = 16,321.66

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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.