Home / 30,631.62-42,270.44-17,019.30

Finding the Fourth Proportional to 30,631.62, 42,270.44 and 17,019.30

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Solution

The fourth proportional to 30,631.62, 42,270.44 and 17,019.30 is: 23,485.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,631.62 : 42,270.44 = 17,019.30 : x
  2. Step 2: Convert to fraction form
    30,631.62/42,270.44 = 17,019.30/x
  3. Step 3: Cross multiply
    30,631.62x = 42,270.44 × 17,019.30
  4. Step 4: Simplify right side
    30,631.62x = 719,413,299.49
  5. Step 5: Solve for x
    x = 719,413,299.49/30,631.62
  6. Step 6: Final answer
    x = 23,485.97

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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.