Home / 21,811.08-32,717.28-7,021.56

Finding the Fourth Proportional to 21,811.08, 32,717.28 and 7,021.56

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Solution

The fourth proportional to 21,811.08, 32,717.28 and 7,021.56 is: 10,532.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,811.08 : 32,717.28 = 7,021.56 : x
  2. Step 2: Convert to fraction form
    21,811.08/32,717.28 = 7,021.56/x
  3. Step 3: Cross multiply
    21,811.08x = 32,717.28 × 7,021.56
  4. Step 4: Simplify right side
    21,811.08x = 229,726,344.56
  5. Step 5: Solve for x
    x = 229,726,344.56/21,811.08
  6. Step 6: Final answer
    x = 10,532.55

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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.