Home / 39,752.40-54,857.68-21,847.03

Finding the Fourth Proportional to 39,752.40, 54,857.68 and 21,847.03

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Solution

The fourth proportional to 39,752.40, 54,857.68 and 21,847.03 is: 30,148.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,752.40 : 54,857.68 = 21,847.03 : x
  2. Step 2: Convert to fraction form
    39,752.40/54,857.68 = 21,847.03/x
  3. Step 3: Cross multiply
    39,752.40x = 54,857.68 × 21,847.03
  4. Step 4: Simplify right side
    39,752.40x = 1,198,477,380.69
  5. Step 5: Solve for x
    x = 1,198,477,380.69/39,752.40
  6. Step 6: Final answer
    x = 30,148.55

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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.