Home / 39,851.96-54,995.29-21,946.59

Finding the Fourth Proportional to 39,851.96, 54,995.29 and 21,946.59

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Solution

The fourth proportional to 39,851.96, 54,995.29 and 21,946.59 is: 30,286.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,851.96 : 54,995.29 = 21,946.59 : x
  2. Step 2: Convert to fraction form
    39,851.96/54,995.29 = 21,946.59/x
  3. Step 3: Cross multiply
    39,851.96x = 54,995.29 × 21,946.59
  4. Step 4: Simplify right side
    39,851.96x = 1,206,958,806.58
  5. Step 5: Solve for x
    x = 1,206,958,806.58/39,851.96
  6. Step 6: Final answer
    x = 30,286.06

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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.