Home / 28,578.02-39,434.46-16,640.24

Finding the Fourth Proportional to 28,578.02, 39,434.46 and 16,640.24

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Solution

The fourth proportional to 28,578.02, 39,434.46 and 16,640.24 is: 22,961.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,578.02 : 39,434.46 = 16,640.24 : x
  2. Step 2: Convert to fraction form
    28,578.02/39,434.46 = 16,640.24/x
  3. Step 3: Cross multiply
    28,578.02x = 39,434.46 × 16,640.24
  4. Step 4: Simplify right side
    28,578.02x = 656,198,878.67
  5. Step 5: Solve for x
    x = 656,198,878.67/28,578.02
  6. Step 6: Final answer
    x = 22,961.66

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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.