Home / 37,622.72-51,918.56-20,855.36

Finding the Fourth Proportional to 37,622.72, 51,918.56 and 20,855.36

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Solution

The fourth proportional to 37,622.72, 51,918.56 and 20,855.36 is: 28,779.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,622.72 : 51,918.56 = 20,855.36 : x
  2. Step 2: Convert to fraction form
    37,622.72/51,918.56 = 20,855.36/x
  3. Step 3: Cross multiply
    37,622.72x = 51,918.56 × 20,855.36
  4. Step 4: Simplify right side
    37,622.72x = 1,082,780,259.48
  5. Step 5: Solve for x
    x = 1,082,780,259.48/37,622.72
  6. Step 6: Final answer
    x = 28,779.96

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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.