Home / 39,151.63-54,080.75-30,021.59

Finding the Fourth Proportional to 39,151.63, 54,080.75 and 30,021.59

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Solution

The fourth proportional to 39,151.63, 54,080.75 and 30,021.59 is: 41,469.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,151.63 : 54,080.75 = 30,021.59 : x
  2. Step 2: Convert to fraction form
    39,151.63/54,080.75 = 30,021.59/x
  3. Step 3: Cross multiply
    39,151.63x = 54,080.75 × 30,021.59
  4. Step 4: Simplify right side
    39,151.63x = 1,623,589,967.23
  5. Step 5: Solve for x
    x = 1,623,589,967.23/39,151.63
  6. Step 6: Final answer
    x = 41,469.28

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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.