Home / 28,659.80-39,550.20-16,084.28

Finding the Fourth Proportional to 28,659.80, 39,550.20 and 16,084.28

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Solution

The fourth proportional to 28,659.80, 39,550.20 and 16,084.28 is: 22,196.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,659.80 : 39,550.20 = 16,084.28 : x
  2. Step 2: Convert to fraction form
    28,659.80/39,550.20 = 16,084.28/x
  3. Step 3: Cross multiply
    28,659.80x = 39,550.20 × 16,084.28
  4. Step 4: Simplify right side
    28,659.80x = 636,136,490.86
  5. Step 5: Solve for x
    x = 636,136,490.86/28,659.80
  6. Step 6: Final answer
    x = 22,196.12

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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.