Home / 36,888.12-50,905.74-20,977.80

Finding the Fourth Proportional to 36,888.12, 50,905.74 and 20,977.80

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Solution

The fourth proportional to 36,888.12, 50,905.74 and 20,977.80 is: 28,949.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,888.12 : 50,905.74 = 20,977.80 : x
  2. Step 2: Convert to fraction form
    36,888.12/50,905.74 = 20,977.80/x
  3. Step 3: Cross multiply
    36,888.12x = 50,905.74 × 20,977.80
  4. Step 4: Simplify right side
    36,888.12x = 1,067,890,432.57
  5. Step 5: Solve for x
    x = 1,067,890,432.57/36,888.12
  6. Step 6: Final answer
    x = 28,949.44

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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.