Home / 30,939.62-42,696.68-16,792.46

Finding the Fourth Proportional to 30,939.62, 42,696.68 and 16,792.46

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Solution

The fourth proportional to 30,939.62, 42,696.68 and 16,792.46 is: 23,173.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,939.62 : 42,696.68 = 16,792.46 : x
  2. Step 2: Convert to fraction form
    30,939.62/42,696.68 = 16,792.46/x
  3. Step 3: Cross multiply
    30,939.62x = 42,696.68 × 16,792.46
  4. Step 4: Simplify right side
    30,939.62x = 716,982,291.03
  5. Step 5: Solve for x
    x = 716,982,291.03/30,939.62
  6. Step 6: Final answer
    x = 23,173.60

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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.