Home / 28,901.94-39,872.62-19,454.10

Finding the Fourth Proportional to 28,901.94, 39,872.62 and 19,454.10

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Solution

The fourth proportional to 28,901.94, 39,872.62 and 19,454.10 is: 26,838.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,901.94 : 39,872.62 = 19,454.10 : x
  2. Step 2: Convert to fraction form
    28,901.94/39,872.62 = 19,454.10/x
  3. Step 3: Cross multiply
    28,901.94x = 39,872.62 × 19,454.10
  4. Step 4: Simplify right side
    28,901.94x = 775,685,936.74
  5. Step 5: Solve for x
    x = 775,685,936.74/28,901.94
  6. Step 6: Final answer
    x = 26,838.54

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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.