Home / 30,735.33-42,418.80-17,309.21

Finding the Fourth Proportional to 30,735.33, 42,418.80 and 17,309.21

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Solution

The fourth proportional to 30,735.33, 42,418.80 and 17,309.21 is: 23,888.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,735.33 : 42,418.80 = 17,309.21 : x
  2. Step 2: Convert to fraction form
    30,735.33/42,418.80 = 17,309.21/x
  3. Step 3: Cross multiply
    30,735.33x = 42,418.80 × 17,309.21
  4. Step 4: Simplify right side
    30,735.33x = 734,235,894.98
  5. Step 5: Solve for x
    x = 734,235,894.98/30,735.33
  6. Step 6: Final answer
    x = 23,888.99

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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.