Home / 28,763.64-39,693.80-16,188.66

Finding the Fourth Proportional to 28,763.64, 39,693.80 and 16,188.66

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Solution

The fourth proportional to 28,763.64, 39,693.80 and 16,188.66 is: 22,340.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,763.64 : 39,693.80 = 16,188.66 : x
  2. Step 2: Convert to fraction form
    28,763.64/39,693.80 = 16,188.66/x
  3. Step 3: Cross multiply
    28,763.64x = 39,693.80 × 16,188.66
  4. Step 4: Simplify right side
    28,763.64x = 642,589,351.36
  5. Step 5: Solve for x
    x = 642,589,351.36/28,763.64
  6. Step 6: Final answer
    x = 22,340.33

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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.