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Finding the Fourth Proportional to 30,054.65, 41,469.80 and 19,301.45

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Solution

The fourth proportional to 30,054.65, 41,469.80 and 19,301.45 is: 26,632.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,054.65 : 41,469.80 = 19,301.45 : x
  2. Step 2: Convert to fraction form
    30,054.65/41,469.80 = 19,301.45/x
  3. Step 3: Cross multiply
    30,054.65x = 41,469.80 × 19,301.45
  4. Step 4: Simplify right side
    30,054.65x = 800,426,967.35
  5. Step 5: Solve for x
    x = 800,426,967.35/30,054.65
  6. Step 6: Final answer
    x = 26,632.39

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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.