Home / 39,054.56-53,894.97-21,149.51

Finding the Fourth Proportional to 39,054.56, 53,894.97 and 21,149.51

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Solution

The fourth proportional to 39,054.56, 53,894.97 and 21,149.51 is: 29,186.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,054.56 : 53,894.97 = 21,149.51 : x
  2. Step 2: Convert to fraction form
    39,054.56/53,894.97 = 21,149.51/x
  3. Step 3: Cross multiply
    39,054.56x = 53,894.97 × 21,149.51
  4. Step 4: Simplify right side
    39,054.56x = 1,139,851,937.49
  5. Step 5: Solve for x
    x = 1,139,851,937.49/39,054.56
  6. Step 6: Final answer
    x = 29,186.15

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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.