Home / 39,851.06-54,995.31-21,946.82

Finding the Fourth Proportional to 39,851.06, 54,995.31 and 21,946.82

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Solution

The fourth proportional to 39,851.06, 54,995.31 and 21,946.82 is: 30,287.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,851.06 : 54,995.31 = 21,946.82 : x
  2. Step 2: Convert to fraction form
    39,851.06/54,995.31 = 21,946.82/x
  3. Step 3: Cross multiply
    39,851.06x = 54,995.31 × 21,946.82
  4. Step 4: Simplify right side
    39,851.06x = 1,206,971,894.44
  5. Step 5: Solve for x
    x = 1,206,971,894.44/39,851.06
  6. Step 6: Final answer
    x = 30,287.08

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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.