Home / 16,078.89-24,121.80-4,985.36

Finding the Fourth Proportional to 16,078.89, 24,121.80 and 4,985.36

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Solution

The fourth proportional to 16,078.89, 24,121.80 and 4,985.36 is: 7,479.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,078.89 : 24,121.80 = 4,985.36 : x
  2. Step 2: Convert to fraction form
    16,078.89/24,121.80 = 4,985.36/x
  3. Step 3: Cross multiply
    16,078.89x = 24,121.80 × 4,985.36
  4. Step 4: Simplify right side
    16,078.89x = 120,255,736.24
  5. Step 5: Solve for x
    x = 120,255,736.24/16,078.89
  6. Step 6: Final answer
    x = 7,479.11

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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.