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Finding the Fourth Proportional to 30,362.04, 41,905.05 and 19,620.23

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Solution

The fourth proportional to 30,362.04, 41,905.05 and 19,620.23 is: 27,079.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,362.04 : 41,905.05 = 19,620.23 : x
  2. Step 2: Convert to fraction form
    30,362.04/41,905.05 = 19,620.23/x
  3. Step 3: Cross multiply
    30,362.04x = 41,905.05 × 19,620.23
  4. Step 4: Simplify right side
    30,362.04x = 822,186,436.06
  5. Step 5: Solve for x
    x = 822,186,436.06/30,362.04
  6. Step 6: Final answer
    x = 27,079.42

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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.