Home / 30,605.84-42,238.24-16,994.64

Finding the Fourth Proportional to 30,605.84, 42,238.24 and 16,994.64

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Solution

The fourth proportional to 30,605.84, 42,238.24 and 16,994.64 is: 23,453.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,605.84 : 42,238.24 = 16,994.64 : x
  2. Step 2: Convert to fraction form
    30,605.84/42,238.24 = 16,994.64/x
  3. Step 3: Cross multiply
    30,605.84x = 42,238.24 × 16,994.64
  4. Step 4: Simplify right side
    30,605.84x = 717,823,683.03
  5. Step 5: Solve for x
    x = 717,823,683.03/30,605.84
  6. Step 6: Final answer
    x = 23,453.81

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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.