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Finding the Fourth Proportional to 30,345.92, 41,853.63 and 19,738.94

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Solution

The fourth proportional to 30,345.92, 41,853.63 and 19,738.94 is: 27,224.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,345.92 : 41,853.63 = 19,738.94 : x
  2. Step 2: Convert to fraction form
    30,345.92/41,853.63 = 19,738.94/x
  3. Step 3: Cross multiply
    30,345.92x = 41,853.63 × 19,738.94
  4. Step 4: Simplify right side
    30,345.92x = 826,146,291.35
  5. Step 5: Solve for x
    x = 826,146,291.35/30,345.92
  6. Step 6: Final answer
    x = 27,224.30

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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.