Home / 33,138.18-45,707.40-21,804.03

Finding the Fourth Proportional to 33,138.18, 45,707.40 and 21,804.03

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Solution

The fourth proportional to 33,138.18, 45,707.40 and 21,804.03 is: 30,074.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,138.18 : 45,707.40 = 21,804.03 : x
  2. Step 2: Convert to fraction form
    33,138.18/45,707.40 = 21,804.03/x
  3. Step 3: Cross multiply
    33,138.18x = 45,707.40 × 21,804.03
  4. Step 4: Simplify right side
    33,138.18x = 996,605,520.82
  5. Step 5: Solve for x
    x = 996,605,520.82/33,138.18
  6. Step 6: Final answer
    x = 30,074.24

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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.