Home / 21,056.22-31,571.24-8,561.16

Finding the Fourth Proportional to 21,056.22, 31,571.24 and 8,561.16

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Solution

The fourth proportional to 21,056.22, 31,571.24 and 8,561.16 is: 12,836.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,056.22 : 31,571.24 = 8,561.16 : x
  2. Step 2: Convert to fraction form
    21,056.22/31,571.24 = 8,561.16/x
  3. Step 3: Cross multiply
    21,056.22x = 31,571.24 × 8,561.16
  4. Step 4: Simplify right side
    21,056.22x = 270,286,394.23
  5. Step 5: Solve for x
    x = 270,286,394.23/21,056.22
  6. Step 6: Final answer
    x = 12,836.42

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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.