Home / 39,513.81-54,529.06-21,608.83

Finding the Fourth Proportional to 39,513.81, 54,529.06 and 21,608.83

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Solution

The fourth proportional to 39,513.81, 54,529.06 and 21,608.83 is: 29,820.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,513.81 : 54,529.06 = 21,608.83 : x
  2. Step 2: Convert to fraction form
    39,513.81/54,529.06 = 21,608.83/x
  3. Step 3: Cross multiply
    39,513.81x = 54,529.06 × 21,608.83
  4. Step 4: Simplify right side
    39,513.81x = 1,178,309,187.60
  5. Step 5: Solve for x
    x = 1,178,309,187.60/39,513.81
  6. Step 6: Final answer
    x = 29,820.19

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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.