Home / 17,120.70-23,475.38-15,435.50

Finding the Fourth Proportional to 17,120.70, 23,475.38 and 15,435.50

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Solution

The fourth proportional to 17,120.70, 23,475.38 and 15,435.50 is: 21,164.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,120.70 : 23,475.38 = 15,435.50 : x
  2. Step 2: Convert to fraction form
    17,120.70/23,475.38 = 15,435.50/x
  3. Step 3: Cross multiply
    17,120.70x = 23,475.38 × 15,435.50
  4. Step 4: Simplify right side
    17,120.70x = 362,354,033.44
  5. Step 5: Solve for x
    x = 362,354,033.44/17,120.70
  6. Step 6: Final answer
    x = 21,164.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.