Home / 20,807.08-31,205.97-6,012.70

Finding the Fourth Proportional to 20,807.08, 31,205.97 and 6,012.70

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Solution

The fourth proportional to 20,807.08, 31,205.97 and 6,012.70 is: 9,017.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,807.08 : 31,205.97 = 6,012.70 : x
  2. Step 2: Convert to fraction form
    20,807.08/31,205.97 = 6,012.70/x
  3. Step 3: Cross multiply
    20,807.08x = 31,205.97 × 6,012.70
  4. Step 4: Simplify right side
    20,807.08x = 187,632,135.82
  5. Step 5: Solve for x
    x = 187,632,135.82/20,807.08
  6. Step 6: Final answer
    x = 9,017.71

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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.