Home / 39,851.54-54,995.13-21,946.49

Finding the Fourth Proportional to 39,851.54, 54,995.13 and 21,946.49

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Solution

The fourth proportional to 39,851.54, 54,995.13 and 21,946.49 is: 30,286.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,851.54 : 54,995.13 = 21,946.49 : x
  2. Step 2: Convert to fraction form
    39,851.54/54,995.13 = 21,946.49/x
  3. Step 3: Cross multiply
    39,851.54x = 54,995.13 × 21,946.49
  4. Step 4: Simplify right side
    39,851.54x = 1,206,949,795.62
  5. Step 5: Solve for x
    x = 1,206,949,795.62/39,851.54
  6. Step 6: Final answer
    x = 30,286.16

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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.