Home / 30,152.78-41,629.71-19,416.33

Finding the Fourth Proportional to 30,152.78, 41,629.71 and 19,416.33

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Solution

The fourth proportional to 30,152.78, 41,629.71 and 19,416.33 is: 26,806.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,152.78 : 41,629.71 = 19,416.33 : x
  2. Step 2: Convert to fraction form
    30,152.78/41,629.71 = 19,416.33/x
  3. Step 3: Cross multiply
    30,152.78x = 41,629.71 × 19,416.33
  4. Step 4: Simplify right side
    30,152.78x = 808,296,187.16
  5. Step 5: Solve for x
    x = 808,296,187.16/30,152.78
  6. Step 6: Final answer
    x = 26,806.69

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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.