Home / 20,039.12-30,075.96-7,735.76

Finding the Fourth Proportional to 20,039.12, 30,075.96 and 7,735.76

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Solution

The fourth proportional to 20,039.12, 30,075.96 and 7,735.76 is: 11,610.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,039.12 : 30,075.96 = 7,735.76 : x
  2. Step 2: Convert to fraction form
    20,039.12/30,075.96 = 7,735.76/x
  3. Step 3: Cross multiply
    20,039.12x = 30,075.96 × 7,735.76
  4. Step 4: Simplify right side
    20,039.12x = 232,660,408.33
  5. Step 5: Solve for x
    x = 232,660,408.33/20,039.12
  6. Step 6: Final answer
    x = 11,610.31

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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.