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Finding the Fourth Proportional to 29,687.68, 40,950.15 and 18,197.22

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Solution

The fourth proportional to 29,687.68, 40,950.15 and 18,197.22 is: 25,100.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,687.68 : 40,950.15 = 18,197.22 : x
  2. Step 2: Convert to fraction form
    29,687.68/40,950.15 = 18,197.22/x
  3. Step 3: Cross multiply
    29,687.68x = 40,950.15 × 18,197.22
  4. Step 4: Simplify right side
    29,687.68x = 745,178,888.58
  5. Step 5: Solve for x
    x = 745,178,888.58/29,687.68
  6. Step 6: Final answer
    x = 25,100.61

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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.