Home / 30,945.37-42,704.31-16,798.19

Finding the Fourth Proportional to 30,945.37, 42,704.31 and 16,798.19

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Solution

The fourth proportional to 30,945.37, 42,704.31 and 16,798.19 is: 23,181.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,945.37 : 42,704.31 = 16,798.19 : x
  2. Step 2: Convert to fraction form
    30,945.37/42,704.31 = 16,798.19/x
  3. Step 3: Cross multiply
    30,945.37x = 42,704.31 × 16,798.19
  4. Step 4: Simplify right side
    30,945.37x = 717,355,113.20
  5. Step 5: Solve for x
    x = 717,355,113.20/30,945.37
  6. Step 6: Final answer
    x = 23,181.34

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Double scale
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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.