Home / 33,931.96-46,815.24-20,507.20

Finding the Fourth Proportional to 33,931.96, 46,815.24 and 20,507.20

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Solution

The fourth proportional to 33,931.96, 46,815.24 and 20,507.20 is: 28,293.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,931.96 : 46,815.24 = 20,507.20 : x
  2. Step 2: Convert to fraction form
    33,931.96/46,815.24 = 20,507.20/x
  3. Step 3: Cross multiply
    33,931.96x = 46,815.24 × 20,507.20
  4. Step 4: Simplify right side
    33,931.96x = 960,049,489.73
  5. Step 5: Solve for x
    x = 960,049,489.73/33,931.96
  6. Step 6: Final answer
    x = 28,293.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.