Home / 21,439.52-32,163.88-6,648.12

Finding the Fourth Proportional to 21,439.52, 32,163.88 and 6,648.12

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Solution

The fourth proportional to 21,439.52, 32,163.88 and 6,648.12 is: 9,973.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,439.52 : 32,163.88 = 6,648.12 : x
  2. Step 2: Convert to fraction form
    21,439.52/32,163.88 = 6,648.12/x
  3. Step 3: Cross multiply
    21,439.52x = 32,163.88 × 6,648.12
  4. Step 4: Simplify right side
    21,439.52x = 213,829,333.91
  5. Step 5: Solve for x
    x = 213,829,333.91/21,439.52
  6. Step 6: Final answer
    x = 9,973.61

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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.