Home / 28,188.75-38,890.81-16,080.53

Finding the Fourth Proportional to 28,188.75, 38,890.81 and 16,080.53

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Solution

The fourth proportional to 28,188.75, 38,890.81 and 16,080.53 is: 22,185.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188.75 : 38,890.81 = 16,080.53 : x
  2. Step 2: Convert to fraction form
    28,188.75/38,890.81 = 16,080.53/x
  3. Step 3: Cross multiply
    28,188.75x = 38,890.81 × 16,080.53
  4. Step 4: Simplify right side
    28,188.75x = 625,384,562.07
  5. Step 5: Solve for x
    x = 625,384,562.07/28,188.75
  6. Step 6: Final answer
    x = 22,185.61

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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.