Home / 28,774.77-43,150.82-13,979.31

Finding the Fourth Proportional to 28,774.77, 43,150.82 and 13,979.31

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Solution

The fourth proportional to 28,774.77, 43,150.82 and 13,979.31 is: 20,963.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,774.77 : 43,150.82 = 13,979.31 : x
  2. Step 2: Convert to fraction form
    28,774.77/43,150.82 = 13,979.31/x
  3. Step 3: Cross multiply
    28,774.77x = 43,150.82 × 13,979.31
  4. Step 4: Simplify right side
    28,774.77x = 603,218,619.64
  5. Step 5: Solve for x
    x = 603,218,619.64/28,774.77
  6. Step 6: Final answer
    x = 20,963.46

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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.