Home / 28,736.46-39,655.92-16,161.21

Finding the Fourth Proportional to 28,736.46, 39,655.92 and 16,161.21

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Solution

The fourth proportional to 28,736.46, 39,655.92 and 16,161.21 is: 22,302.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,736.46 : 39,655.92 = 16,161.21 : x
  2. Step 2: Convert to fraction form
    28,736.46/39,655.92 = 16,161.21/x
  3. Step 3: Cross multiply
    28,736.46x = 39,655.92 × 16,161.21
  4. Step 4: Simplify right side
    28,736.46x = 640,887,650.86
  5. Step 5: Solve for x
    x = 640,887,650.86/28,736.46
  6. Step 6: Final answer
    x = 22,302.25

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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.