Home / 30,945.88-42,705.08-16,798.44

Finding the Fourth Proportional to 30,945.88, 42,705.08 and 16,798.44

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Solution

The fourth proportional to 30,945.88, 42,705.08 and 16,798.44 is: 23,181.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,945.88 : 42,705.08 = 16,798.44 : x
  2. Step 2: Convert to fraction form
    30,945.88/42,705.08 = 16,798.44/x
  3. Step 3: Cross multiply
    30,945.88x = 42,705.08 × 16,798.44
  4. Step 4: Simplify right side
    30,945.88x = 717,378,724.08
  5. Step 5: Solve for x
    x = 717,378,724.08/30,945.88
  6. Step 6: Final answer
    x = 23,181.72

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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.