Home / 28,991.86-43,493.19-9,275.38

Finding the Fourth Proportional to 28,991.86, 43,493.19 and 9,275.38

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Solution

The fourth proportional to 28,991.86, 43,493.19 and 9,275.38 is: 13,914.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,991.86 : 43,493.19 = 9,275.38 : x
  2. Step 2: Convert to fraction form
    28,991.86/43,493.19 = 9,275.38/x
  3. Step 3: Cross multiply
    28,991.86x = 43,493.19 × 9,275.38
  4. Step 4: Simplify right side
    28,991.86x = 403,415,864.66
  5. Step 5: Solve for x
    x = 403,415,864.66/28,991.86
  6. Step 6: Final answer
    x = 13,914.80

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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.