Home / 28,683.86-43,036.82-13,891.64

Finding the Fourth Proportional to 28,683.86, 43,036.82 and 13,891.64

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Solution

The fourth proportional to 28,683.86, 43,036.82 and 13,891.64 is: 20,842.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,683.86 : 43,036.82 = 13,891.64 : x
  2. Step 2: Convert to fraction form
    28,683.86/43,036.82 = 13,891.64/x
  3. Step 3: Cross multiply
    28,683.86x = 43,036.82 × 13,891.64
  4. Step 4: Simplify right side
    28,683.86x = 597,852,010.18
  5. Step 5: Solve for x
    x = 597,852,010.18/28,683.86
  6. Step 6: Final answer
    x = 20,842.80

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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.