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Finding the Fourth Proportional to 30,422.77, 41,985.06 and 16,994.32

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Solution

The fourth proportional to 30,422.77, 41,985.06 and 16,994.32 is: 23,453.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,422.77 : 41,985.06 = 16,994.32 : x
  2. Step 2: Convert to fraction form
    30,422.77/41,985.06 = 16,994.32/x
  3. Step 3: Cross multiply
    30,422.77x = 41,985.06 × 16,994.32
  4. Step 4: Simplify right side
    30,422.77x = 713,507,544.86
  5. Step 5: Solve for x
    x = 713,507,544.86/30,422.77
  6. Step 6: Final answer
    x = 23,453.08

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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.