Home / 28,860.32-43,257.70-12,209.96

Finding the Fourth Proportional to 28,860.32, 43,257.70 and 12,209.96

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Solution

The fourth proportional to 28,860.32, 43,257.70 and 12,209.96 is: 18,301.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,860.32 : 43,257.70 = 12,209.96 : x
  2. Step 2: Convert to fraction form
    28,860.32/43,257.70 = 12,209.96/x
  3. Step 3: Cross multiply
    28,860.32x = 43,257.70 × 12,209.96
  4. Step 4: Simplify right side
    28,860.32x = 528,174,786.69
  5. Step 5: Solve for x
    x = 528,174,786.69/28,860.32
  6. Step 6: Final answer
    x = 18,301.07

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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.