Home / 22,690.76-31,311.43-12,619.22

Finding the Fourth Proportional to 22,690.76, 31,311.43 and 12,619.22

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Solution

The fourth proportional to 22,690.76, 31,311.43 and 12,619.22 is: 17,413.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,690.76 : 31,311.43 = 12,619.22 : x
  2. Step 2: Convert to fraction form
    22,690.76/31,311.43 = 12,619.22/x
  3. Step 3: Cross multiply
    22,690.76x = 31,311.43 × 12,619.22
  4. Step 4: Simplify right side
    22,690.76x = 395,125,635.58
  5. Step 5: Solve for x
    x = 395,125,635.58/22,690.76
  6. Step 6: Final answer
    x = 17,413.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.