Home / 31,188.39-46,781.15-11,465.52

Finding the Fourth Proportional to 31,188.39, 46,781.15 and 11,465.52

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Solution

The fourth proportional to 31,188.39, 46,781.15 and 11,465.52 is: 17,197.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,188.39 : 46,781.15 = 11,465.52 : x
  2. Step 2: Convert to fraction form
    31,188.39/46,781.15 = 11,465.52/x
  3. Step 3: Cross multiply
    31,188.39x = 46,781.15 × 11,465.52
  4. Step 4: Simplify right side
    31,188.39x = 536,370,153.62
  5. Step 5: Solve for x
    x = 536,370,153.62/31,188.39
  6. Step 6: Final answer
    x = 17,197.75

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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.