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Finding the Fourth Proportional to 38,480, 53,103.68 and 22,346.08

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Solution

The fourth proportional to 38,480, 53,103.68 and 22,346.08 is: 30,838.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,480 : 53,103.68 = 22,346.08 : x
  2. Step 2: Convert to fraction form
    38,480/53,103.68 = 22,346.08/x
  3. Step 3: Cross multiply
    38,480x = 53,103.68 × 22,346.08
  4. Step 4: Simplify right side
    38,480x = 1,186,659,081.57
  5. Step 5: Solve for x
    x = 1,186,659,081.57/38,480
  6. Step 6: Final answer
    x = 30,838.33

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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.