Home / 39,808.61-54,937.21-21,904.93

Finding the Fourth Proportional to 39,808.61, 54,937.21 and 21,904.93

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Solution

The fourth proportional to 39,808.61, 54,937.21 and 21,904.93 is: 30,229.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,808.61 : 54,937.21 = 21,904.93 : x
  2. Step 2: Convert to fraction form
    39,808.61/54,937.21 = 21,904.93/x
  3. Step 3: Cross multiply
    39,808.61x = 54,937.21 × 21,904.93
  4. Step 4: Simplify right side
    39,808.61x = 1,203,395,629.92
  5. Step 5: Solve for x
    x = 1,203,395,629.92/39,808.61
  6. Step 6: Final answer
    x = 30,229.53

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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.