Home / 20,832.06-31,216.77-8,339.70

Finding the Fourth Proportional to 20,832.06, 31,216.77 and 8,339.70

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Solution

The fourth proportional to 20,832.06, 31,216.77 and 8,339.70 is: 12,497.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,832.06 : 31,216.77 = 8,339.70 : x
  2. Step 2: Convert to fraction form
    20,832.06/31,216.77 = 8,339.70/x
  3. Step 3: Cross multiply
    20,832.06x = 31,216.77 × 8,339.70
  4. Step 4: Simplify right side
    20,832.06x = 260,338,496.77
  5. Step 5: Solve for x
    x = 260,338,496.77/20,832.06
  6. Step 6: Final answer
    x = 12,497.01

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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.