Home / 28,185.92-38,887.70-16,247.60

Finding the Fourth Proportional to 28,185.92, 38,887.70 and 16,247.60

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Solution

The fourth proportional to 28,185.92, 38,887.70 and 16,247.60 is: 22,416.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,185.92 : 38,887.70 = 16,247.60 : x
  2. Step 2: Convert to fraction form
    28,185.92/38,887.70 = 16,247.60/x
  3. Step 3: Cross multiply
    28,185.92x = 38,887.70 × 16,247.60
  4. Step 4: Simplify right side
    28,185.92x = 631,831,794.52
  5. Step 5: Solve for x
    x = 631,831,794.52/28,185.92
  6. Step 6: Final answer
    x = 22,416.58

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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.