Home / 39,593.66-54,637.79-21,688.83

Finding the Fourth Proportional to 39,593.66, 54,637.79 and 21,688.83

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Solution

The fourth proportional to 39,593.66, 54,637.79 and 21,688.83 is: 29,929.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,593.66 : 54,637.79 = 21,688.83 : x
  2. Step 2: Convert to fraction form
    39,593.66/54,637.79 = 21,688.83/x
  3. Step 3: Cross multiply
    39,593.66x = 54,637.79 × 21,688.83
  4. Step 4: Simplify right side
    39,593.66x = 1,185,029,630.44
  5. Step 5: Solve for x
    x = 1,185,029,630.44/39,593.66
  6. Step 6: Final answer
    x = 29,929.79

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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.