Home / 39,851.60-54,993.04-21,943.20

Finding the Fourth Proportional to 39,851.60, 54,993.04 and 21,943.20

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Solution

The fourth proportional to 39,851.60, 54,993.04 and 21,943.20 is: 30,280.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,851.60 : 54,993.04 = 21,943.20 : x
  2. Step 2: Convert to fraction form
    39,851.60/54,993.04 = 21,943.20/x
  3. Step 3: Cross multiply
    39,851.60x = 54,993.04 × 21,943.20
  4. Step 4: Simplify right side
    39,851.60x = 1,206,723,275.33
  5. Step 5: Solve for x
    x = 1,206,723,275.33/39,851.60
  6. Step 6: Final answer
    x = 30,280.42

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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.