Home / 20,963.30-31,448.84-6,924.30

Finding the Fourth Proportional to 20,963.30, 31,448.84 and 6,924.30

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Solution

The fourth proportional to 20,963.30, 31,448.84 and 6,924.30 is: 10,387.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,963.30 : 31,448.84 = 6,924.30 : x
  2. Step 2: Convert to fraction form
    20,963.30/31,448.84 = 6,924.30/x
  3. Step 3: Cross multiply
    20,963.30x = 31,448.84 × 6,924.30
  4. Step 4: Simplify right side
    20,963.30x = 217,761,202.81
  5. Step 5: Solve for x
    x = 217,761,202.81/20,963.30
  6. Step 6: Final answer
    x = 10,387.73

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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.