Home / 20,189.04-30,263.94-7,705.56

Finding the Fourth Proportional to 20,189.04, 30,263.94 and 7,705.56

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Solution

The fourth proportional to 20,189.04, 30,263.94 and 7,705.56 is: 11,550.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189.04 : 30,263.94 = 7,705.56 : x
  2. Step 2: Convert to fraction form
    20,189.04/30,263.94 = 7,705.56/x
  3. Step 3: Cross multiply
    20,189.04x = 30,263.94 × 7,705.56
  4. Step 4: Simplify right side
    20,189.04x = 233,200,605.51
  5. Step 5: Solve for x
    x = 233,200,605.51/20,189.04
  6. Step 6: Final answer
    x = 11,550.85

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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.