Home / 33,129.27-45,720.32-18,789.67

Finding the Fourth Proportional to 33,129.27, 45,720.32 and 18,789.67

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Solution

The fourth proportional to 33,129.27, 45,720.32 and 18,789.67 is: 25,930.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,129.27 : 45,720.32 = 18,789.67 : x
  2. Step 2: Convert to fraction form
    33,129.27/45,720.32 = 18,789.67/x
  3. Step 3: Cross multiply
    33,129.27x = 45,720.32 × 18,789.67
  4. Step 4: Simplify right side
    33,129.27x = 859,069,688.30
  5. Step 5: Solve for x
    x = 859,069,688.30/33,129.27
  6. Step 6: Final answer
    x = 25,930.84

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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.