Home / 39,608.66-54,661.23-21,704.81

Finding the Fourth Proportional to 39,608.66, 54,661.23 and 21,704.81

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Solution

The fourth proportional to 39,608.66, 54,661.23 and 21,704.81 is: 29,953.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,608.66 : 54,661.23 = 21,704.81 : x
  2. Step 2: Convert to fraction form
    39,608.66/54,661.23 = 21,704.81/x
  3. Step 3: Cross multiply
    39,608.66x = 54,661.23 × 21,704.81
  4. Step 4: Simplify right side
    39,608.66x = 1,186,411,338.21
  5. Step 5: Solve for x
    x = 1,186,411,338.21/39,608.66
  6. Step 6: Final answer
    x = 29,953.34

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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.