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Finding the Fourth Proportional to 30,405.34, 41,954.24 and 16,976.08

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Solution

The fourth proportional to 30,405.34, 41,954.24 and 16,976.08 is: 23,424.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,405.34 : 41,954.24 = 16,976.08 : x
  2. Step 2: Convert to fraction form
    30,405.34/41,954.24 = 16,976.08/x
  3. Step 3: Cross multiply
    30,405.34x = 41,954.24 × 16,976.08
  4. Step 4: Simplify right side
    30,405.34x = 712,218,534.58
  5. Step 5: Solve for x
    x = 712,218,534.58/30,405.34
  6. Step 6: Final answer
    x = 23,424.13

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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.