Home / 21,425.88-32,133.63-8,269.86

Finding the Fourth Proportional to 21,425.88, 32,133.63 and 8,269.86

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Solution

The fourth proportional to 21,425.88, 32,133.63 and 8,269.86 is: 12,402.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425.88 : 32,133.63 = 8,269.86 : x
  2. Step 2: Convert to fraction form
    21,425.88/32,133.63 = 8,269.86/x
  3. Step 3: Cross multiply
    21,425.88x = 32,133.63 × 8,269.86
  4. Step 4: Simplify right side
    21,425.88x = 265,740,621.39
  5. Step 5: Solve for x
    x = 265,740,621.39/21,425.88
  6. Step 6: Final answer
    x = 12,402.79

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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.