Home / 30,111.36-41,553-16,682.64

Finding the Fourth Proportional to 30,111.36, 41,553 and 16,682.64

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Solution

The fourth proportional to 30,111.36, 41,553 and 16,682.64 is: 23,021.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,111.36 : 41,553 = 16,682.64 : x
  2. Step 2: Convert to fraction form
    30,111.36/41,553 = 16,682.64/x
  3. Step 3: Cross multiply
    30,111.36x = 41,553 × 16,682.64
  4. Step 4: Simplify right side
    30,111.36x = 693,213,739.92
  5. Step 5: Solve for x
    x = 693,213,739.92/30,111.36
  6. Step 6: Final answer
    x = 23,021.67

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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.