Home / 34,121.06-51,213.60-20,999.06

Finding the Fourth Proportional to 34,121.06, 51,213.60 and 20,999.06

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Solution

The fourth proportional to 34,121.06, 51,213.60 and 20,999.06 is: 31,518.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,121.06 : 51,213.60 = 20,999.06 : x
  2. Step 2: Convert to fraction form
    34,121.06/51,213.60 = 20,999.06/x
  3. Step 3: Cross multiply
    34,121.06x = 51,213.60 × 20,999.06
  4. Step 4: Simplify right side
    34,121.06x = 1,075,437,459.22
  5. Step 5: Solve for x
    x = 1,075,437,459.22/34,121.06
  6. Step 6: Final answer
    x = 31,518.29

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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.