Home / 50,311.43-69,428.31-28,800.46

Finding the Fourth Proportional to 50,311.43, 69,428.31 and 28,800.46

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Solution

The fourth proportional to 50,311.43, 69,428.31 and 28,800.46 is: 39,743.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,311.43 : 69,428.31 = 28,800.46 : x
  2. Step 2: Convert to fraction form
    50,311.43/69,428.31 = 28,800.46/x
  3. Step 3: Cross multiply
    50,311.43x = 69,428.31 × 28,800.46
  4. Step 4: Simplify right side
    50,311.43x = 1,999,567,524.23
  5. Step 5: Solve for x
    x = 1,999,567,524.23/50,311.43
  6. Step 6: Final answer
    x = 39,743.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.