Home / 31,200.40-46,795.20-11,468.80

Finding the Fourth Proportional to 31,200.40, 46,795.20 and 11,468.80

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Solution

The fourth proportional to 31,200.40, 46,795.20 and 11,468.80 is: 17,201.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,200.40 : 46,795.20 = 11,468.80 : x
  2. Step 2: Convert to fraction form
    31,200.40/46,795.20 = 11,468.80/x
  3. Step 3: Cross multiply
    31,200.40x = 46,795.20 × 11,468.80
  4. Step 4: Simplify right side
    31,200.40x = 536,684,789.76
  5. Step 5: Solve for x
    x = 536,684,789.76/31,200.40
  6. Step 6: Final answer
    x = 17,201.22

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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.