Home / 20,976.15-31,464.18-6,185.22

Finding the Fourth Proportional to 20,976.15, 31,464.18 and 6,185.22

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Solution

The fourth proportional to 20,976.15, 31,464.18 and 6,185.22 is: 9,277.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,976.15 : 31,464.18 = 6,185.22 : x
  2. Step 2: Convert to fraction form
    20,976.15/31,464.18 = 6,185.22/x
  3. Step 3: Cross multiply
    20,976.15x = 31,464.18 × 6,185.22
  4. Step 4: Simplify right side
    20,976.15x = 194,612,875.42
  5. Step 5: Solve for x
    x = 194,612,875.42/20,976.15
  6. Step 6: Final answer
    x = 9,277.82

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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.