Home / 28,763.48-39,694.40-16,188.68

Finding the Fourth Proportional to 28,763.48, 39,694.40 and 16,188.68

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Solution

The fourth proportional to 28,763.48, 39,694.40 and 16,188.68 is: 22,340.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,763.48 : 39,694.40 = 16,188.68 : x
  2. Step 2: Convert to fraction form
    28,763.48/39,694.40 = 16,188.68/x
  3. Step 3: Cross multiply
    28,763.48x = 39,694.40 × 16,188.68
  4. Step 4: Simplify right side
    28,763.48x = 642,599,939.39
  5. Step 5: Solve for x
    x = 642,599,939.39/28,763.48
  6. Step 6: Final answer
    x = 22,340.83

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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.