Home / 30,891.99-42,630.93-16,744.83

Finding the Fourth Proportional to 30,891.99, 42,630.93 and 16,744.83

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Solution

The fourth proportional to 30,891.99, 42,630.93 and 16,744.83 is: 23,107.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,891.99 : 42,630.93 = 16,744.83 : x
  2. Step 2: Convert to fraction form
    30,891.99/42,630.93 = 16,744.83/x
  3. Step 3: Cross multiply
    30,891.99x = 42,630.93 × 16,744.83
  4. Step 4: Simplify right side
    30,891.99x = 713,847,675.59
  5. Step 5: Solve for x
    x = 713,847,675.59/30,891.99
  6. Step 6: Final answer
    x = 23,107.86

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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.