Home / 28,661.76-39,553.92-16,087.68

Finding the Fourth Proportional to 28,661.76, 39,553.92 and 16,087.68

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Solution

The fourth proportional to 28,661.76, 39,553.92 and 16,087.68 is: 22,201.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,661.76 : 39,553.92 = 16,087.68 : x
  2. Step 2: Convert to fraction form
    28,661.76/39,553.92 = 16,087.68/x
  3. Step 3: Cross multiply
    28,661.76x = 39,553.92 × 16,087.68
  4. Step 4: Simplify right side
    28,661.76x = 636,330,807.71
  5. Step 5: Solve for x
    x = 636,330,807.71/28,661.76
  6. Step 6: Final answer
    x = 22,201.39

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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.