Home / 33,083.07-45,661.86-20,347.20

Finding the Fourth Proportional to 33,083.07, 45,661.86 and 20,347.20

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Solution

The fourth proportional to 33,083.07, 45,661.86 and 20,347.20 is: 28,083.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,083.07 : 45,661.86 = 20,347.20 : x
  2. Step 2: Convert to fraction form
    33,083.07/45,661.86 = 20,347.20/x
  3. Step 3: Cross multiply
    33,083.07x = 45,661.86 × 20,347.20
  4. Step 4: Simplify right side
    33,083.07x = 929,090,997.79
  5. Step 5: Solve for x
    x = 929,090,997.79/33,083.07
  6. Step 6: Final answer
    x = 28,083.58

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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.