Home / 39,511.94-54,531.72-25,405.79

Finding the Fourth Proportional to 39,511.94, 54,531.72 and 25,405.79

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Solution

The fourth proportional to 39,511.94, 54,531.72 and 25,405.79 is: 35,063.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,511.94 : 54,531.72 = 25,405.79 : x
  2. Step 2: Convert to fraction form
    39,511.94/54,531.72 = 25,405.79/x
  3. Step 3: Cross multiply
    39,511.94x = 54,531.72 × 25,405.79
  4. Step 4: Simplify right side
    39,511.94x = 1,385,421,154.00
  5. Step 5: Solve for x
    x = 1,385,421,154.00/39,511.94
  6. Step 6: Final answer
    x = 35,063.36

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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.