Home / 21,515.43-32,272.74-6,724.29

Finding the Fourth Proportional to 21,515.43, 32,272.74 and 6,724.29

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Solution

The fourth proportional to 21,515.43, 32,272.74 and 6,724.29 is: 10,086.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,515.43 : 32,272.74 = 6,724.29 : x
  2. Step 2: Convert to fraction form
    21,515.43/32,272.74 = 6,724.29/x
  3. Step 3: Cross multiply
    21,515.43x = 32,272.74 × 6,724.29
  4. Step 4: Simplify right side
    21,515.43x = 217,011,262.85
  5. Step 5: Solve for x
    x = 217,011,262.85/21,515.43
  6. Step 6: Final answer
    x = 10,086.31

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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.