Home / 30,887.88-42,625.49-16,740.96

Finding the Fourth Proportional to 30,887.88, 42,625.49 and 16,740.96

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Solution

The fourth proportional to 30,887.88, 42,625.49 and 16,740.96 is: 23,102.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,887.88 : 42,625.49 = 16,740.96 : x
  2. Step 2: Convert to fraction form
    30,887.88/42,625.49 = 16,740.96/x
  3. Step 3: Cross multiply
    30,887.88x = 42,625.49 × 16,740.96
  4. Step 4: Simplify right side
    30,887.88x = 713,591,539.37
  5. Step 5: Solve for x
    x = 713,591,539.37/30,887.88
  6. Step 6: Final answer
    x = 23,102.64

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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.