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Finding the Fourth Proportional to 36,853.83, 50,858.30 and 20,938.30

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Solution

The fourth proportional to 36,853.83, 50,858.30 and 20,938.30 is: 28,894.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,853.83 : 50,858.30 = 20,938.30 : x
  2. Step 2: Convert to fraction form
    36,853.83/50,858.30 = 20,938.30/x
  3. Step 3: Cross multiply
    36,853.83x = 50,858.30 × 20,938.30
  4. Step 4: Simplify right side
    36,853.83x = 1,064,886,342.89
  5. Step 5: Solve for x
    x = 1,064,886,342.89/36,853.83
  6. Step 6: Final answer
    x = 28,894.86

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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.