Home / 20,434.33-30,651.46-5,643.21

Finding the Fourth Proportional to 20,434.33, 30,651.46 and 5,643.21

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Solution

The fourth proportional to 20,434.33, 30,651.46 and 5,643.21 is: 8,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434.33 : 30,651.46 = 5,643.21 : x
  2. Step 2: Convert to fraction form
    20,434.33/30,651.46 = 5,643.21/x
  3. Step 3: Cross multiply
    20,434.33x = 30,651.46 × 5,643.21
  4. Step 4: Simplify right side
    20,434.33x = 172,972,597.37
  5. Step 5: Solve for x
    x = 172,972,597.37/20,434.33
  6. Step 6: Final answer
    x = 8,464.80

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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.