Home / 28,917.84-39,901.41-16,171.28

Finding the Fourth Proportional to 28,917.84, 39,901.41 and 16,171.28

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Solution

The fourth proportional to 28,917.84, 39,901.41 and 16,171.28 is: 22,313.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,917.84 : 39,901.41 = 16,171.28 : x
  2. Step 2: Convert to fraction form
    28,917.84/39,901.41 = 16,171.28/x
  3. Step 3: Cross multiply
    28,917.84x = 39,901.41 × 16,171.28
  4. Step 4: Simplify right side
    28,917.84x = 645,256,674.00
  5. Step 5: Solve for x
    x = 645,256,674.00/28,917.84
  6. Step 6: Final answer
    x = 22,313.45

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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.