Home / 21,385.86-32,076.29-8,229.03

Finding the Fourth Proportional to 21,385.86, 32,076.29 and 8,229.03

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Solution

The fourth proportional to 21,385.86, 32,076.29 and 8,229.03 is: 12,342.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,385.86 : 32,076.29 = 8,229.03 : x
  2. Step 2: Convert to fraction form
    21,385.86/32,076.29 = 8,229.03/x
  3. Step 3: Cross multiply
    21,385.86x = 32,076.29 × 8,229.03
  4. Step 4: Simplify right side
    21,385.86x = 263,956,711.55
  5. Step 5: Solve for x
    x = 263,956,711.55/21,385.86
  6. Step 6: Final answer
    x = 12,342.58

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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.