Home / 28,621.11-39,499.64-16,684.20

Finding the Fourth Proportional to 28,621.11, 39,499.64 and 16,684.20

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Solution

The fourth proportional to 28,621.11, 39,499.64 and 16,684.20 is: 23,025.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,621.11 : 39,499.64 = 16,684.20 : x
  2. Step 2: Convert to fraction form
    28,621.11/39,499.64 = 16,684.20/x
  3. Step 3: Cross multiply
    28,621.11x = 39,499.64 × 16,684.20
  4. Step 4: Simplify right side
    28,621.11x = 659,019,810.27
  5. Step 5: Solve for x
    x = 659,019,810.27/28,621.11
  6. Step 6: Final answer
    x = 23,025.66

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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.