Home / 20,838.51-28,754.58-16,600.35

Finding the Fourth Proportional to 20,838.51, 28,754.58 and 16,600.35

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Solution

The fourth proportional to 20,838.51, 28,754.58 and 16,600.35 is: 22,906.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,838.51 : 28,754.58 = 16,600.35 : x
  2. Step 2: Convert to fraction form
    20,838.51/28,754.58 = 16,600.35/x
  3. Step 3: Cross multiply
    20,838.51x = 28,754.58 × 16,600.35
  4. Step 4: Simplify right side
    20,838.51x = 477,336,092.10
  5. Step 5: Solve for x
    x = 477,336,092.10/20,838.51
  6. Step 6: Final answer
    x = 22,906.44

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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.