Home / 30,352.20-41,880.96-16,920.51

Finding the Fourth Proportional to 30,352.20, 41,880.96 and 16,920.51

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Solution

The fourth proportional to 30,352.20, 41,880.96 and 16,920.51 is: 23,347.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,352.20 : 41,880.96 = 16,920.51 : x
  2. Step 2: Convert to fraction form
    30,352.20/41,880.96 = 16,920.51/x
  3. Step 3: Cross multiply
    30,352.20x = 41,880.96 × 16,920.51
  4. Step 4: Simplify right side
    30,352.20x = 708,647,202.49
  5. Step 5: Solve for x
    x = 708,647,202.49/30,352.20
  6. Step 6: Final answer
    x = 23,347.47

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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.