Home / 30,201.66-41,678.18-16,772.58

Finding the Fourth Proportional to 30,201.66, 41,678.18 and 16,772.58

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Solution

The fourth proportional to 30,201.66, 41,678.18 and 16,772.58 is: 23,146.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,201.66 : 41,678.18 = 16,772.58 : x
  2. Step 2: Convert to fraction form
    30,201.66/41,678.18 = 16,772.58/x
  3. Step 3: Cross multiply
    30,201.66x = 41,678.18 × 16,772.58
  4. Step 4: Simplify right side
    30,201.66x = 699,050,608.30
  5. Step 5: Solve for x
    x = 699,050,608.30/30,201.66
  6. Step 6: Final answer
    x = 23,146.10

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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.