Home / 30,735.65-42,419.24-17,309.54

Finding the Fourth Proportional to 30,735.65, 42,419.24 and 17,309.54

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Solution

The fourth proportional to 30,735.65, 42,419.24 and 17,309.54 is: 23,889.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,735.65 : 42,419.24 = 17,309.54 : x
  2. Step 2: Convert to fraction form
    30,735.65/42,419.24 = 17,309.54/x
  3. Step 3: Cross multiply
    30,735.65x = 42,419.24 × 17,309.54
  4. Step 4: Simplify right side
    30,735.65x = 734,257,232.91
  5. Step 5: Solve for x
    x = 734,257,232.91/30,735.65
  6. Step 6: Final answer
    x = 23,889.44

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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.