Home / 41,139.86-61,663.12-18,907.28

Finding the Fourth Proportional to 41,139.86, 61,663.12 and 18,907.28

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Solution

The fourth proportional to 41,139.86, 61,663.12 and 18,907.28 is: 28,339.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,139.86 : 61,663.12 = 18,907.28 : x
  2. Step 2: Convert to fraction form
    41,139.86/61,663.12 = 18,907.28/x
  3. Step 3: Cross multiply
    41,139.86x = 61,663.12 × 18,907.28
  4. Step 4: Simplify right side
    41,139.86x = 1,165,882,029.67
  5. Step 5: Solve for x
    x = 1,165,882,029.67/41,139.86
  6. Step 6: Final answer
    x = 28,339.48

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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.