Home / 39,727.21-54,820.86-21,822.97

Finding the Fourth Proportional to 39,727.21, 54,820.86 and 21,822.97

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Solution

The fourth proportional to 39,727.21, 54,820.86 and 21,822.97 is: 30,114.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,727.21 : 54,820.86 = 21,822.97 : x
  2. Step 2: Convert to fraction form
    39,727.21/54,820.86 = 21,822.97/x
  3. Step 3: Cross multiply
    39,727.21x = 54,820.86 × 21,822.97
  4. Step 4: Simplify right side
    39,727.21x = 1,196,353,983.15
  5. Step 5: Solve for x
    x = 1,196,353,983.15/39,727.21
  6. Step 6: Final answer
    x = 30,114.22

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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.