Home / 30,350.40-41,880.49-16,920.39

Finding the Fourth Proportional to 30,350.40, 41,880.49 and 16,920.39

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Solution

The fourth proportional to 30,350.40, 41,880.49 and 16,920.39 is: 23,348.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,350.40 : 41,880.49 = 16,920.39 : x
  2. Step 2: Convert to fraction form
    30,350.40/41,880.49 = 16,920.39/x
  3. Step 3: Cross multiply
    30,350.40x = 41,880.49 × 16,920.39
  4. Step 4: Simplify right side
    30,350.40x = 708,634,434.12
  5. Step 5: Solve for x
    x = 708,634,434.12/30,350.40
  6. Step 6: Final answer
    x = 23,348.44

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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.