Home / 21,828.78-32,725.68-8,677.62

Finding the Fourth Proportional to 21,828.78, 32,725.68 and 8,677.62

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Solution

The fourth proportional to 21,828.78, 32,725.68 and 8,677.62 is: 13,009.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,828.78 : 32,725.68 = 8,677.62 : x
  2. Step 2: Convert to fraction form
    21,828.78/32,725.68 = 8,677.62/x
  3. Step 3: Cross multiply
    21,828.78x = 32,725.68 × 8,677.62
  4. Step 4: Simplify right side
    21,828.78x = 283,981,015.28
  5. Step 5: Solve for x
    x = 283,981,015.28/21,828.78
  6. Step 6: Final answer
    x = 13,009.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.