Home / 28,786.51-39,724.78-16,039.64

Finding the Fourth Proportional to 28,786.51, 39,724.78 and 16,039.64

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Solution

The fourth proportional to 28,786.51, 39,724.78 and 16,039.64 is: 22,134.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,786.51 : 39,724.78 = 16,039.64 : x
  2. Step 2: Convert to fraction form
    28,786.51/39,724.78 = 16,039.64/x
  3. Step 3: Cross multiply
    28,786.51x = 39,724.78 × 16,039.64
  4. Step 4: Simplify right side
    28,786.51x = 637,171,036.11
  5. Step 5: Solve for x
    x = 637,171,036.11/28,786.51
  6. Step 6: Final answer
    x = 22,134.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.