Home / 33,071.36-45,620.30-20,949.65

Finding the Fourth Proportional to 33,071.36, 45,620.30 and 20,949.65

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Solution

The fourth proportional to 33,071.36, 45,620.30 and 20,949.65 is: 28,899.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,071.36 : 45,620.30 = 20,949.65 : x
  2. Step 2: Convert to fraction form
    33,071.36/45,620.30 = 20,949.65/x
  3. Step 3: Cross multiply
    33,071.36x = 45,620.30 × 20,949.65
  4. Step 4: Simplify right side
    33,071.36x = 955,729,142.17
  5. Step 5: Solve for x
    x = 955,729,142.17/33,071.36
  6. Step 6: Final answer
    x = 28,899.00

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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.