Home / 21,799.28-32,707.20-11,403.92

Finding the Fourth Proportional to 21,799.28, 32,707.20 and 11,403.92

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Solution

The fourth proportional to 21,799.28, 32,707.20 and 11,403.92 is: 17,110.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,799.28 : 32,707.20 = 11,403.92 : x
  2. Step 2: Convert to fraction form
    21,799.28/32,707.20 = 11,403.92/x
  3. Step 3: Cross multiply
    21,799.28x = 32,707.20 × 11,403.92
  4. Step 4: Simplify right side
    21,799.28x = 372,990,292.22
  5. Step 5: Solve for x
    x = 372,990,292.22/21,799.28
  6. Step 6: Final answer
    x = 17,110.21

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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.