Home / 39,750.28-54,851.82-21,845.08

Finding the Fourth Proportional to 39,750.28, 54,851.82 and 21,845.08

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Solution

The fourth proportional to 39,750.28, 54,851.82 and 21,845.08 is: 30,144.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,750.28 : 54,851.82 = 21,845.08 : x
  2. Step 2: Convert to fraction form
    39,750.28/54,851.82 = 21,845.08/x
  3. Step 3: Cross multiply
    39,750.28x = 54,851.82 × 21,845.08
  4. Step 4: Simplify right side
    39,750.28x = 1,198,242,396.05
  5. Step 5: Solve for x
    x = 1,198,242,396.05/39,750.28
  6. Step 6: Final answer
    x = 30,144.25

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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.