Home / 33,081.48-45,671.45-21,783.81

Finding the Fourth Proportional to 33,081.48, 45,671.45 and 21,783.81

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Solution

The fourth proportional to 33,081.48, 45,671.45 and 21,783.81 is: 30,074.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,081.48 : 45,671.45 = 21,783.81 : x
  2. Step 2: Convert to fraction form
    33,081.48/45,671.45 = 21,783.81/x
  3. Step 3: Cross multiply
    33,081.48x = 45,671.45 × 21,783.81
  4. Step 4: Simplify right side
    33,081.48x = 994,898,189.22
  5. Step 5: Solve for x
    x = 994,898,189.22/33,081.48
  6. Step 6: Final answer
    x = 30,074.17

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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.