Home / 28,661.28-39,548.16-16,083.60

Finding the Fourth Proportional to 28,661.28, 39,548.16 and 16,083.60

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Solution

The fourth proportional to 28,661.28, 39,548.16 and 16,083.60 is: 22,192.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,661.28 : 39,548.16 = 16,083.60 : x
  2. Step 2: Convert to fraction form
    28,661.28/39,548.16 = 16,083.60/x
  3. Step 3: Cross multiply
    28,661.28x = 39,548.16 × 16,083.60
  4. Step 4: Simplify right side
    28,661.28x = 636,076,786.18
  5. Step 5: Solve for x
    x = 636,076,786.18/28,661.28
  6. Step 6: Final answer
    x = 22,192.90

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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.