Home / 21,789.88-32,688.06-10,104.28

Finding the Fourth Proportional to 21,789.88, 32,688.06 and 10,104.28

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Solution

The fourth proportional to 21,789.88, 32,688.06 and 10,104.28 is: 15,157.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,789.88 : 32,688.06 = 10,104.28 : x
  2. Step 2: Convert to fraction form
    21,789.88/32,688.06 = 10,104.28/x
  3. Step 3: Cross multiply
    21,789.88x = 32,688.06 × 10,104.28
  4. Step 4: Simplify right side
    21,789.88x = 330,289,310.90
  5. Step 5: Solve for x
    x = 330,289,310.90/21,789.88
  6. Step 6: Final answer
    x = 15,157.92

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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.