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Finding the Fourth Proportional to 30,379.74, 41,830.47 and 25,893.42

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Solution

The fourth proportional to 30,379.74, 41,830.47 and 25,893.42 is: 35,653.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,379.74 : 41,830.47 = 25,893.42 : x
  2. Step 2: Convert to fraction form
    30,379.74/41,830.47 = 25,893.42/x
  3. Step 3: Cross multiply
    30,379.74x = 41,830.47 × 25,893.42
  4. Step 4: Simplify right side
    30,379.74x = 1,083,133,928.51
  5. Step 5: Solve for x
    x = 1,083,133,928.51/30,379.74
  6. Step 6: Final answer
    x = 35,653.17

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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.