Home / 33,021.44-45,567.36-18,118.40

Finding the Fourth Proportional to 33,021.44, 45,567.36 and 18,118.40

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Solution

The fourth proportional to 33,021.44, 45,567.36 and 18,118.40 is: 25,002.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,021.44 : 45,567.36 = 18,118.40 : x
  2. Step 2: Convert to fraction form
    33,021.44/45,567.36 = 18,118.40/x
  3. Step 3: Cross multiply
    33,021.44x = 45,567.36 × 18,118.40
  4. Step 4: Simplify right side
    33,021.44x = 825,607,655.42
  5. Step 5: Solve for x
    x = 825,607,655.42/33,021.44
  6. Step 6: Final answer
    x = 25,002.17

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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.