Home / 33,128.40-45,724.32-21,798.93

Finding the Fourth Proportional to 33,128.40, 45,724.32 and 21,798.93

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Solution

The fourth proportional to 33,128.40, 45,724.32 and 21,798.93 is: 30,087.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,128.40 : 45,724.32 = 21,798.93 : x
  2. Step 2: Convert to fraction form
    33,128.40/45,724.32 = 21,798.93/x
  3. Step 3: Cross multiply
    33,128.40x = 45,724.32 × 21,798.93
  4. Step 4: Simplify right side
    33,128.40x = 996,741,250.98
  5. Step 5: Solve for x
    x = 996,741,250.98/33,128.40
  6. Step 6: Final answer
    x = 30,087.21

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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.