Home / 26,429.47-39,640.34-7,704.47

Finding the Fourth Proportional to 26,429.47, 39,640.34 and 7,704.47

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Solution

The fourth proportional to 26,429.47, 39,640.34 and 7,704.47 is: 11,555.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,429.47 : 39,640.34 = 7,704.47 : x
  2. Step 2: Convert to fraction form
    26,429.47/39,640.34 = 7,704.47/x
  3. Step 3: Cross multiply
    26,429.47x = 39,640.34 × 7,704.47
  4. Step 4: Simplify right side
    26,429.47x = 305,407,928.68
  5. Step 5: Solve for x
    x = 305,407,928.68/26,429.47
  6. Step 6: Final answer
    x = 11,555.58

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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.