Home / 28,881.16-39,845.28-16,940.14

Finding the Fourth Proportional to 28,881.16, 39,845.28 and 16,940.14

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Solution

The fourth proportional to 28,881.16, 39,845.28 and 16,940.14 is: 23,371.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,881.16 : 39,845.28 = 16,940.14 : x
  2. Step 2: Convert to fraction form
    28,881.16/39,845.28 = 16,940.14/x
  3. Step 3: Cross multiply
    28,881.16x = 39,845.28 × 16,940.14
  4. Step 4: Simplify right side
    28,881.16x = 674,984,621.54
  5. Step 5: Solve for x
    x = 674,984,621.54/28,881.16
  6. Step 6: Final answer
    x = 23,371.10

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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.