Home / 28,936.06-39,920.50-18,176.32

Finding the Fourth Proportional to 28,936.06, 39,920.50 and 18,176.32

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Solution

The fourth proportional to 28,936.06, 39,920.50 and 18,176.32 is: 25,076.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,936.06 : 39,920.50 = 18,176.32 : x
  2. Step 2: Convert to fraction form
    28,936.06/39,920.50 = 18,176.32/x
  3. Step 3: Cross multiply
    28,936.06x = 39,920.50 × 18,176.32
  4. Step 4: Simplify right side
    28,936.06x = 725,607,865.22
  5. Step 5: Solve for x
    x = 725,607,865.22/28,936.06
  6. Step 6: Final answer
    x = 25,076.25

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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.