Home / 30,736.33-42,420.18-17,310.21

Finding the Fourth Proportional to 30,736.33, 42,420.18 and 17,310.21

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Solution

The fourth proportional to 30,736.33, 42,420.18 and 17,310.21 is: 23,890.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,736.33 : 42,420.18 = 17,310.21 : x
  2. Step 2: Convert to fraction form
    30,736.33/42,420.18 = 17,310.21/x
  3. Step 3: Cross multiply
    30,736.33x = 42,420.18 × 17,310.21
  4. Step 4: Simplify right side
    30,736.33x = 734,302,224.04
  5. Step 5: Solve for x
    x = 734,302,224.04/30,736.33
  6. Step 6: Final answer
    x = 23,890.37

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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.