Home / 30,940.36-42,696.55-16,792.90

Finding the Fourth Proportional to 30,940.36, 42,696.55 and 16,792.90

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Solution

The fourth proportional to 30,940.36, 42,696.55 and 16,792.90 is: 23,173.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,940.36 : 42,696.55 = 16,792.90 : x
  2. Step 2: Convert to fraction form
    30,940.36/42,696.55 = 16,792.90/x
  3. Step 3: Cross multiply
    30,940.36x = 42,696.55 × 16,792.90
  4. Step 4: Simplify right side
    30,940.36x = 716,998,808.74
  5. Step 5: Solve for x
    x = 716,998,808.74/30,940.36
  6. Step 6: Final answer
    x = 23,173.58

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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.