Home / 50,013.12-69,015.87-28,787.88

Finding the Fourth Proportional to 50,013.12, 69,015.87 and 28,787.88

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Solution

The fourth proportional to 50,013.12, 69,015.87 and 28,787.88 is: 39,725.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,013.12 : 69,015.87 = 28,787.88 : x
  2. Step 2: Convert to fraction form
    50,013.12/69,015.87 = 28,787.88/x
  3. Step 3: Cross multiply
    50,013.12x = 69,015.87 × 28,787.88
  4. Step 4: Simplify right side
    50,013.12x = 1,986,820,583.66
  5. Step 5: Solve for x
    x = 1,986,820,583.66/50,013.12
  6. Step 6: Final answer
    x = 39,725.99

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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.