Home / 39,195.02-54,089.62-21,290.33

Finding the Fourth Proportional to 39,195.02, 54,089.62 and 21,290.33

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Solution

The fourth proportional to 39,195.02, 54,089.62 and 21,290.33 is: 29,380.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,195.02 : 54,089.62 = 21,290.33 : x
  2. Step 2: Convert to fraction form
    39,195.02/54,089.62 = 21,290.33/x
  3. Step 3: Cross multiply
    39,195.02x = 54,089.62 × 21,290.33
  4. Step 4: Simplify right side
    39,195.02x = 1,151,585,756.88
  5. Step 5: Solve for x
    x = 1,151,585,756.88/39,195.02
  6. Step 6: Final answer
    x = 29,380.92

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Double scale
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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.