Home / 37,779.18-52,138.62-20,786.80

Finding the Fourth Proportional to 37,779.18, 52,138.62 and 20,786.80

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Solution

The fourth proportional to 37,779.18, 52,138.62 and 20,786.80 is: 28,687.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,779.18 : 52,138.62 = 20,786.80 : x
  2. Step 2: Convert to fraction form
    37,779.18/52,138.62 = 20,786.80/x
  3. Step 3: Cross multiply
    37,779.18x = 52,138.62 × 20,786.80
  4. Step 4: Simplify right side
    37,779.18x = 1,083,795,066.22
  5. Step 5: Solve for x
    x = 1,083,795,066.22/37,779.18
  6. Step 6: Final answer
    x = 28,687.63

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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.