Home / 33,323.81-45,982.35-21,403.31

Finding the Fourth Proportional to 33,323.81, 45,982.35 and 21,403.31

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Solution

The fourth proportional to 33,323.81, 45,982.35 and 21,403.31 is: 29,533.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,323.81 : 45,982.35 = 21,403.31 : x
  2. Step 2: Convert to fraction form
    33,323.81/45,982.35 = 21,403.31/x
  3. Step 3: Cross multiply
    33,323.81x = 45,982.35 × 21,403.31
  4. Step 4: Simplify right side
    33,323.81x = 984,174,261.67
  5. Step 5: Solve for x
    x = 984,174,261.67/33,323.81
  6. Step 6: Final answer
    x = 29,533.67

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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.