Home / 20,816.04-31,216.22-6,772.38

Finding the Fourth Proportional to 20,816.04, 31,216.22 and 6,772.38

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Solution

The fourth proportional to 20,816.04, 31,216.22 and 6,772.38 is: 10,156.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,816.04 : 31,216.22 = 6,772.38 : x
  2. Step 2: Convert to fraction form
    20,816.04/31,216.22 = 6,772.38/x
  3. Step 3: Cross multiply
    20,816.04x = 31,216.22 × 6,772.38
  4. Step 4: Simplify right side
    20,816.04x = 211,408,104.00
  5. Step 5: Solve for x
    x = 211,408,104.00/20,816.04
  6. Step 6: Final answer
    x = 10,156.02

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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.