Home / 41,139.61-61,662.75-18,907.03

Finding the Fourth Proportional to 41,139.61, 61,662.75 and 18,907.03

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Solution

The fourth proportional to 41,139.61, 61,662.75 and 18,907.03 is: 28,339.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,139.61 : 61,662.75 = 18,907.03 : x
  2. Step 2: Convert to fraction form
    41,139.61/61,662.75 = 18,907.03/x
  3. Step 3: Cross multiply
    41,139.61x = 61,662.75 × 18,907.03
  4. Step 4: Simplify right side
    41,139.61x = 1,165,859,470.31
  5. Step 5: Solve for x
    x = 1,165,859,470.31/41,139.61
  6. Step 6: Final answer
    x = 28,339.10

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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.