Home / 29,212.75-40,313.60-16,638.67

Finding the Fourth Proportional to 29,212.75, 40,313.60 and 16,638.67

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Solution

The fourth proportional to 29,212.75, 40,313.60 and 16,638.67 is: 22,961.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,212.75 : 40,313.60 = 16,638.67 : x
  2. Step 2: Convert to fraction form
    29,212.75/40,313.60 = 16,638.67/x
  3. Step 3: Cross multiply
    29,212.75x = 40,313.60 × 16,638.67
  4. Step 4: Simplify right side
    29,212.75x = 670,764,686.91
  5. Step 5: Solve for x
    x = 670,764,686.91/29,212.75
  6. Step 6: Final answer
    x = 22,961.37

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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.