Home / 20,120.07-30,171.96-6,075.75

Finding the Fourth Proportional to 20,120.07, 30,171.96 and 6,075.75

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Solution

The fourth proportional to 20,120.07, 30,171.96 and 6,075.75 is: 9,111.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,120.07 : 30,171.96 = 6,075.75 : x
  2. Step 2: Convert to fraction form
    20,120.07/30,171.96 = 6,075.75/x
  3. Step 3: Cross multiply
    20,120.07x = 30,171.96 × 6,075.75
  4. Step 4: Simplify right side
    20,120.07x = 183,317,285.97
  5. Step 5: Solve for x
    x = 183,317,285.97/20,120.07
  6. Step 6: Final answer
    x = 9,111.17

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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.