Home / 39,509.08-54,523.56-21,604.84

Finding the Fourth Proportional to 39,509.08, 54,523.56 and 21,604.84

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Solution

The fourth proportional to 39,509.08, 54,523.56 and 21,604.84 is: 29,815.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,509.08 : 54,523.56 = 21,604.84 : x
  2. Step 2: Convert to fraction form
    39,509.08/54,523.56 = 21,604.84/x
  3. Step 3: Cross multiply
    39,509.08x = 54,523.56 × 21,604.84
  4. Step 4: Simplify right side
    39,509.08x = 1,177,972,790.03
  5. Step 5: Solve for x
    x = 1,177,972,790.03/39,509.08
  6. Step 6: Final answer
    x = 29,815.24

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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.