Home / 30,111.78-41,556.60-16,684.28

Finding the Fourth Proportional to 30,111.78, 41,556.60 and 16,684.28

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Solution

The fourth proportional to 30,111.78, 41,556.60 and 16,684.28 is: 23,025.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,111.78 : 41,556.60 = 16,684.28 : x
  2. Step 2: Convert to fraction form
    30,111.78/41,556.60 = 16,684.28/x
  3. Step 3: Cross multiply
    30,111.78x = 41,556.60 × 16,684.28
  4. Step 4: Simplify right side
    30,111.78x = 693,341,742.47
  5. Step 5: Solve for x
    x = 693,341,742.47/30,111.78
  6. Step 6: Final answer
    x = 23,025.60

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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.