Home / 28,682.86-39,578.07-16,105.18

Finding the Fourth Proportional to 28,682.86, 39,578.07 and 16,105.18

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Solution

The fourth proportional to 28,682.86, 39,578.07 and 16,105.18 is: 22,222.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,682.86 : 39,578.07 = 16,105.18 : x
  2. Step 2: Convert to fraction form
    28,682.86/39,578.07 = 16,105.18/x
  3. Step 3: Cross multiply
    28,682.86x = 39,578.07 × 16,105.18
  4. Step 4: Simplify right side
    28,682.86x = 637,411,941.40
  5. Step 5: Solve for x
    x = 637,411,941.40/28,682.86
  6. Step 6: Final answer
    x = 22,222.75

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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.