Home / 31,346.88-46,989.60-12,891.84

Finding the Fourth Proportional to 31,346.88, 46,989.60 and 12,891.84

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Solution

The fourth proportional to 31,346.88, 46,989.60 and 12,891.84 is: 19,325.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,346.88 : 46,989.60 = 12,891.84 : x
  2. Step 2: Convert to fraction form
    31,346.88/46,989.60 = 12,891.84/x
  3. Step 3: Cross multiply
    31,346.88x = 46,989.60 × 12,891.84
  4. Step 4: Simplify right side
    31,346.88x = 605,782,404.86
  5. Step 5: Solve for x
    x = 605,782,404.86/31,346.88
  6. Step 6: Final answer
    x = 19,325.13

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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.