Home / 28,910.93-43,357.89-12,261.79

Finding the Fourth Proportional to 28,910.93, 43,357.89 and 12,261.79

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Solution

The fourth proportional to 28,910.93, 43,357.89 and 12,261.79 is: 18,389.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,910.93 : 43,357.89 = 12,261.79 : x
  2. Step 2: Convert to fraction form
    28,910.93/43,357.89 = 12,261.79/x
  3. Step 3: Cross multiply
    28,910.93x = 43,357.89 × 12,261.79
  4. Step 4: Simplify right side
    28,910.93x = 531,645,342.02
  5. Step 5: Solve for x
    x = 531,645,342.02/28,910.93
  6. Step 6: Final answer
    x = 18,389.08

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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.