Home / 21,533.85-32,287.55-8,370.88

Finding the Fourth Proportional to 21,533.85, 32,287.55 and 8,370.88

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Solution

The fourth proportional to 21,533.85, 32,287.55 and 8,370.88 is: 12,551.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,533.85 : 32,287.55 = 8,370.88 : x
  2. Step 2: Convert to fraction form
    21,533.85/32,287.55 = 8,370.88/x
  3. Step 3: Cross multiply
    21,533.85x = 32,287.55 × 8,370.88
  4. Step 4: Simplify right side
    21,533.85x = 270,275,083.97
  5. Step 5: Solve for x
    x = 270,275,083.97/21,533.85
  6. Step 6: Final answer
    x = 12,551.17

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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.