Home / 30,348.22-41,880.72-16,920.32

Finding the Fourth Proportional to 30,348.22, 41,880.72 and 16,920.32

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Solution

The fourth proportional to 30,348.22, 41,880.72 and 16,920.32 is: 23,350.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,348.22 : 41,880.72 = 16,920.32 : x
  2. Step 2: Convert to fraction form
    30,348.22/41,880.72 = 16,920.32/x
  3. Step 3: Cross multiply
    30,348.22x = 41,880.72 × 16,920.32
  4. Step 4: Simplify right side
    30,348.22x = 708,635,184.23
  5. Step 5: Solve for x
    x = 708,635,184.23/30,348.22
  6. Step 6: Final answer
    x = 23,350.14

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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.