Home / 30,348.48-41,883.04-16,920.64

Finding the Fourth Proportional to 30,348.48, 41,883.04 and 16,920.64

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Solution

The fourth proportional to 30,348.48, 41,883.04 and 16,920.64 is: 23,351.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,348.48 : 41,883.04 = 16,920.64 : x
  2. Step 2: Convert to fraction form
    30,348.48/41,883.04 = 16,920.64/x
  3. Step 3: Cross multiply
    30,348.48x = 41,883.04 × 16,920.64
  4. Step 4: Simplify right side
    30,348.48x = 708,687,841.95
  5. Step 5: Solve for x
    x = 708,687,841.95/30,348.48
  6. Step 6: Final answer
    x = 23,351.68

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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.