Home / 30,911.94-42,654.60-17,299.62

Finding the Fourth Proportional to 30,911.94, 42,654.60 and 17,299.62

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Solution

The fourth proportional to 30,911.94, 42,654.60 and 17,299.62 is: 23,871.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,911.94 : 42,654.60 = 17,299.62 : x
  2. Step 2: Convert to fraction form
    30,911.94/42,654.60 = 17,299.62/x
  3. Step 3: Cross multiply
    30,911.94x = 42,654.60 × 17,299.62
  4. Step 4: Simplify right side
    30,911.94x = 737,908,371.25
  5. Step 5: Solve for x
    x = 737,908,371.25/30,911.94
  6. Step 6: Final answer
    x = 23,871.31

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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.