Home / 28,998.21-40,020.75-16,253.49

Finding the Fourth Proportional to 28,998.21, 40,020.75 and 16,253.49

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Solution

The fourth proportional to 28,998.21, 40,020.75 and 16,253.49 is: 22,431.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,998.21 : 40,020.75 = 16,253.49 : x
  2. Step 2: Convert to fraction form
    28,998.21/40,020.75 = 16,253.49/x
  3. Step 3: Cross multiply
    28,998.21x = 40,020.75 × 16,253.49
  4. Step 4: Simplify right side
    28,998.21x = 650,476,859.92
  5. Step 5: Solve for x
    x = 650,476,859.92/28,998.21
  6. Step 6: Final answer
    x = 22,431.62

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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.