Home / 30,278-41,789.42-20,051.02

Finding the Fourth Proportional to 30,278, 41,789.42 and 20,051.02

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Solution

The fourth proportional to 30,278, 41,789.42 and 20,051.02 is: 27,674.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,278 : 41,789.42 = 20,051.02 : x
  2. Step 2: Convert to fraction form
    30,278/41,789.42 = 20,051.02/x
  3. Step 3: Cross multiply
    30,278x = 41,789.42 × 20,051.02
  4. Step 4: Simplify right side
    30,278x = 837,920,496.21
  5. Step 5: Solve for x
    x = 837,920,496.21/30,278
  6. Step 6: Final answer
    x = 27,674.24

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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.