Home / 28,872.21-43,308.31-9,150.77

Finding the Fourth Proportional to 28,872.21, 43,308.31 and 9,150.77

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Solution

The fourth proportional to 28,872.21, 43,308.31 and 9,150.77 is: 13,726.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,872.21 : 43,308.31 = 9,150.77 : x
  2. Step 2: Convert to fraction form
    28,872.21/43,308.31 = 9,150.77/x
  3. Step 3: Cross multiply
    28,872.21x = 43,308.31 × 9,150.77
  4. Step 4: Simplify right side
    28,872.21x = 396,304,212.31
  5. Step 5: Solve for x
    x = 396,304,212.31/28,872.21
  6. Step 6: Final answer
    x = 13,726.15

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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.