Home / 23,185.12-31,990.80-14,690.56

Finding the Fourth Proportional to 23,185.12, 31,990.80 and 14,690.56

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Solution

The fourth proportional to 23,185.12, 31,990.80 and 14,690.56 is: 20,270.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,185.12 : 31,990.80 = 14,690.56 : x
  2. Step 2: Convert to fraction form
    23,185.12/31,990.80 = 14,690.56/x
  3. Step 3: Cross multiply
    23,185.12x = 31,990.80 × 14,690.56
  4. Step 4: Simplify right side
    23,185.12x = 469,962,766.85
  5. Step 5: Solve for x
    x = 469,962,766.85/23,185.12
  6. Step 6: Final answer
    x = 20,270.02

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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.