Home / 31,195.85-46,812.20-16,405.91

Finding the Fourth Proportional to 31,195.85, 46,812.20 and 16,405.91

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Solution

The fourth proportional to 31,195.85, 46,812.20 and 16,405.91 is: 24,618.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,195.85 : 46,812.20 = 16,405.91 : x
  2. Step 2: Convert to fraction form
    31,195.85/46,812.20 = 16,405.91/x
  3. Step 3: Cross multiply
    31,195.85x = 46,812.20 × 16,405.91
  4. Step 4: Simplify right side
    31,195.85x = 767,996,424.01
  5. Step 5: Solve for x
    x = 767,996,424.01/31,195.85
  6. Step 6: Final answer
    x = 24,618.55

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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.