Home / 20,964.65-31,448.12-6,924.85

Finding the Fourth Proportional to 20,964.65, 31,448.12 and 6,924.85

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Solution

The fourth proportional to 20,964.65, 31,448.12 and 6,924.85 is: 10,387.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,964.65 : 31,448.12 = 6,924.85 : x
  2. Step 2: Convert to fraction form
    20,964.65/31,448.12 = 6,924.85/x
  3. Step 3: Cross multiply
    20,964.65x = 31,448.12 × 6,924.85
  4. Step 4: Simplify right side
    20,964.65x = 217,773,400.54
  5. Step 5: Solve for x
    x = 217,773,400.54/20,964.65
  6. Step 6: Final answer
    x = 10,387.65

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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.