Home / 28,395.96-39,186.48-17,065.68

Finding the Fourth Proportional to 28,395.96, 39,186.48 and 17,065.68

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Solution

The fourth proportional to 28,395.96, 39,186.48 and 17,065.68 is: 23,550.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,395.96 : 39,186.48 = 17,065.68 : x
  2. Step 2: Convert to fraction form
    28,395.96/39,186.48 = 17,065.68/x
  3. Step 3: Cross multiply
    28,395.96x = 39,186.48 × 17,065.68
  4. Step 4: Simplify right side
    28,395.96x = 668,743,928.01
  5. Step 5: Solve for x
    x = 668,743,928.01/28,395.96
  6. Step 6: Final answer
    x = 23,550.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.