Home / 39,066.09-53,911.19-21,161.06

Finding the Fourth Proportional to 39,066.09, 53,911.19 and 21,161.06

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Solution

The fourth proportional to 39,066.09, 53,911.19 and 21,161.06 is: 29,202.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,066.09 : 53,911.19 = 21,161.06 : x
  2. Step 2: Convert to fraction form
    39,066.09/53,911.19 = 21,161.06/x
  3. Step 3: Cross multiply
    39,066.09x = 53,911.19 × 21,161.06
  4. Step 4: Simplify right side
    39,066.09x = 1,140,817,550.90
  5. Step 5: Solve for x
    x = 1,140,817,550.90/39,066.09
  6. Step 6: Final answer
    x = 29,202.25

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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.