Home / 28,963.66-43,396.89-20,176.78

Finding the Fourth Proportional to 28,963.66, 43,396.89 and 20,176.78

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Solution

The fourth proportional to 28,963.66, 43,396.89 and 20,176.78 is: 30,231.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,963.66 : 43,396.89 = 20,176.78 : x
  2. Step 2: Convert to fraction form
    28,963.66/43,396.89 = 20,176.78/x
  3. Step 3: Cross multiply
    28,963.66x = 43,396.89 × 20,176.78
  4. Step 4: Simplify right side
    28,963.66x = 875,609,502.21
  5. Step 5: Solve for x
    x = 875,609,502.21/28,963.66
  6. Step 6: Final answer
    x = 30,231.31

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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.