Home / 30,945.23-42,704.38-16,798.07

Finding the Fourth Proportional to 30,945.23, 42,704.38 and 16,798.07

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Solution

The fourth proportional to 30,945.23, 42,704.38 and 16,798.07 is: 23,181.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,945.23 : 42,704.38 = 16,798.07 : x
  2. Step 2: Convert to fraction form
    30,945.23/42,704.38 = 16,798.07/x
  3. Step 3: Cross multiply
    30,945.23x = 42,704.38 × 16,798.07
  4. Step 4: Simplify right side
    30,945.23x = 717,351,164.55
  5. Step 5: Solve for x
    x = 717,351,164.55/30,945.23
  6. Step 6: Final answer
    x = 23,181.32

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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.