Home / 28,829.48-43,260.89-12,188.43

Finding the Fourth Proportional to 28,829.48, 43,260.89 and 12,188.43

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Solution

The fourth proportional to 28,829.48, 43,260.89 and 12,188.43 is: 18,289.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,829.48 : 43,260.89 = 12,188.43 : x
  2. Step 2: Convert to fraction form
    28,829.48/43,260.89 = 12,188.43/x
  3. Step 3: Cross multiply
    28,829.48x = 43,260.89 × 12,188.43
  4. Step 4: Simplify right side
    28,829.48x = 527,282,268.56
  5. Step 5: Solve for x
    x = 527,282,268.56/28,829.48
  6. Step 6: Final answer
    x = 18,289.69

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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.