Home / 38,137.88-52,630.81-20,911.86

Finding the Fourth Proportional to 38,137.88, 52,630.81 and 20,911.86

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Solution

The fourth proportional to 38,137.88, 52,630.81 and 20,911.86 is: 28,858.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,137.88 : 52,630.81 = 20,911.86 : x
  2. Step 2: Convert to fraction form
    38,137.88/52,630.81 = 20,911.86/x
  3. Step 3: Cross multiply
    38,137.88x = 52,630.81 × 20,911.86
  4. Step 4: Simplify right side
    38,137.88x = 1,100,608,275.49
  5. Step 5: Solve for x
    x = 1,100,608,275.49/38,137.88
  6. Step 6: Final answer
    x = 28,858.66

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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.