Home / 16,720.50-23,074.29-9,268.50

Finding the Fourth Proportional to 16,720.50, 23,074.29 and 9,268.50

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Solution

The fourth proportional to 16,720.50, 23,074.29 and 9,268.50 is: 12,790.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,720.50 : 23,074.29 = 9,268.50 : x
  2. Step 2: Convert to fraction form
    16,720.50/23,074.29 = 9,268.50/x
  3. Step 3: Cross multiply
    16,720.50x = 23,074.29 × 9,268.50
  4. Step 4: Simplify right side
    16,720.50x = 213,864,056.87
  5. Step 5: Solve for x
    x = 213,864,056.87/16,720.50
  6. Step 6: Final answer
    x = 12,790.53

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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.