Home / 39,910.07-55,076.28-22,005.79

Finding the Fourth Proportional to 39,910.07, 55,076.28 and 22,005.79

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Solution

The fourth proportional to 39,910.07, 55,076.28 and 22,005.79 is: 30,368.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,910.07 : 55,076.28 = 22,005.79 : x
  2. Step 2: Convert to fraction form
    39,910.07/55,076.28 = 22,005.79/x
  3. Step 3: Cross multiply
    39,910.07x = 55,076.28 × 22,005.79
  4. Step 4: Simplify right side
    39,910.07x = 1,211,997,051.66
  5. Step 5: Solve for x
    x = 1,211,997,051.66/39,910.07
  6. Step 6: Final answer
    x = 30,368.20

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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.