Home / 29,172.89-40,262.42-16,428.56

Finding the Fourth Proportional to 29,172.89, 40,262.42 and 16,428.56

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Solution

The fourth proportional to 29,172.89, 40,262.42 and 16,428.56 is: 22,673.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,172.89 : 40,262.42 = 16,428.56 : x
  2. Step 2: Convert to fraction form
    29,172.89/40,262.42 = 16,428.56/x
  3. Step 3: Cross multiply
    29,172.89x = 40,262.42 × 16,428.56
  4. Step 4: Simplify right side
    29,172.89x = 661,453,511.85
  5. Step 5: Solve for x
    x = 661,453,511.85/29,172.89
  6. Step 6: Final answer
    x = 22,673.57

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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.