Home / 20,633.38-30,950.47-6,782.38

Finding the Fourth Proportional to 20,633.38, 30,950.47 and 6,782.38

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Solution

The fourth proportional to 20,633.38, 30,950.47 and 6,782.38 is: 10,173.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,633.38 : 30,950.47 = 6,782.38 : x
  2. Step 2: Convert to fraction form
    20,633.38/30,950.47 = 6,782.38/x
  3. Step 3: Cross multiply
    20,633.38x = 30,950.47 × 6,782.38
  4. Step 4: Simplify right side
    20,633.38x = 209,917,848.72
  5. Step 5: Solve for x
    x = 209,917,848.72/20,633.38
  6. Step 6: Final answer
    x = 10,173.70

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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.