Home / 20,571.52-30,815.96-9,462.76

Finding the Fourth Proportional to 20,571.52, 30,815.96 and 9,462.76

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Solution

The fourth proportional to 20,571.52, 30,815.96 and 9,462.76 is: 14,175.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,571.52 : 30,815.96 = 9,462.76 : x
  2. Step 2: Convert to fraction form
    20,571.52/30,815.96 = 9,462.76/x
  3. Step 3: Cross multiply
    20,571.52x = 30,815.96 × 9,462.76
  4. Step 4: Simplify right side
    20,571.52x = 291,604,033.65
  5. Step 5: Solve for x
    x = 291,604,033.65/20,571.52
  6. Step 6: Final answer
    x = 14,175.13

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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.