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Finding the Fourth Proportional to 36,776.40, 50,751.08 and 20,860.72

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Solution

The fourth proportional to 36,776.40, 50,751.08 and 20,860.72 is: 28,787.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,776.40 : 50,751.08 = 20,860.72 : x
  2. Step 2: Convert to fraction form
    36,776.40/50,751.08 = 20,860.72/x
  3. Step 3: Cross multiply
    36,776.40x = 50,751.08 × 20,860.72
  4. Step 4: Simplify right side
    36,776.40x = 1,058,704,069.58
  5. Step 5: Solve for x
    x = 1,058,704,069.58/36,776.40
  6. Step 6: Final answer
    x = 28,787.59

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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.