Home / 20,757.65-31,133.12-5,963.21

Finding the Fourth Proportional to 20,757.65, 31,133.12 and 5,963.21

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Solution

The fourth proportional to 20,757.65, 31,133.12 and 5,963.21 is: 8,943.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757.65 : 31,133.12 = 5,963.21 : x
  2. Step 2: Convert to fraction form
    20,757.65/31,133.12 = 5,963.21/x
  3. Step 3: Cross multiply
    20,757.65x = 31,133.12 × 5,963.21
  4. Step 4: Simplify right side
    20,757.65x = 185,653,147.03
  5. Step 5: Solve for x
    x = 185,653,147.03/20,757.65
  6. Step 6: Final answer
    x = 8,943.84

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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.