Home / 37,189.90-55,729.48-20,554.72

Finding the Fourth Proportional to 37,189.90, 55,729.48 and 20,554.72

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Solution

The fourth proportional to 37,189.90, 55,729.48 and 20,554.72 is: 30,801.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,189.90 : 55,729.48 = 20,554.72 : x
  2. Step 2: Convert to fraction form
    37,189.90/55,729.48 = 20,554.72/x
  3. Step 3: Cross multiply
    37,189.90x = 55,729.48 × 20,554.72
  4. Step 4: Simplify right side
    37,189.90x = 1,145,503,857.15
  5. Step 5: Solve for x
    x = 1,145,503,857.15/37,189.90
  6. Step 6: Final answer
    x = 30,801.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.