Home / 21,378.52-32,076.29-8,227.36

Finding the Fourth Proportional to 21,378.52, 32,076.29 and 8,227.36

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Solution

The fourth proportional to 21,378.52, 32,076.29 and 8,227.36 is: 12,344.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,378.52 : 32,076.29 = 8,227.36 : x
  2. Step 2: Convert to fraction form
    21,378.52/32,076.29 = 8,227.36/x
  3. Step 3: Cross multiply
    21,378.52x = 32,076.29 × 8,227.36
  4. Step 4: Simplify right side
    21,378.52x = 263,903,185.29
  5. Step 5: Solve for x
    x = 263,903,185.29/21,378.52
  6. Step 6: Final answer
    x = 12,344.32

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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.