Home / 21,738.74-32,620.10-8,600.31

Finding the Fourth Proportional to 21,738.74, 32,620.10 and 8,600.31

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Solution

The fourth proportional to 21,738.74, 32,620.10 and 8,600.31 is: 12,905.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,738.74 : 32,620.10 = 8,600.31 : x
  2. Step 2: Convert to fraction form
    21,738.74/32,620.10 = 8,600.31/x
  3. Step 3: Cross multiply
    21,738.74x = 32,620.10 × 8,600.31
  4. Step 4: Simplify right side
    21,738.74x = 280,542,929.23
  5. Step 5: Solve for x
    x = 280,542,929.23/21,738.74
  6. Step 6: Final answer
    x = 12,905.21

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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.