Home / 39,752.28-54,858.29-21,847.64

Finding the Fourth Proportional to 39,752.28, 54,858.29 and 21,847.64

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Solution

The fourth proportional to 39,752.28, 54,858.29 and 21,847.64 is: 30,149.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,752.28 : 54,858.29 = 21,847.64 : x
  2. Step 2: Convert to fraction form
    39,752.28/54,858.29 = 21,847.64/x
  3. Step 3: Cross multiply
    39,752.28x = 54,858.29 × 21,847.64
  4. Step 4: Simplify right side
    39,752.28x = 1,198,523,787.41
  5. Step 5: Solve for x
    x = 1,198,523,787.41/39,752.28
  6. Step 6: Final answer
    x = 30,149.81

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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.