Home / 28,872.30-43,309.67-9,150.42

Finding the Fourth Proportional to 28,872.30, 43,309.67 and 9,150.42

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Solution

The fourth proportional to 28,872.30, 43,309.67 and 9,150.42 is: 13,726.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,872.30 : 43,309.67 = 9,150.42 : x
  2. Step 2: Convert to fraction form
    28,872.30/43,309.67 = 9,150.42/x
  3. Step 3: Cross multiply
    28,872.30x = 43,309.67 × 9,150.42
  4. Step 4: Simplify right side
    28,872.30x = 396,301,624.81
  5. Step 5: Solve for x
    x = 396,301,624.81/28,872.30
  6. Step 6: Final answer
    x = 13,726.02

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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.