Home / 30,805.19-42,510.38-17,375.37

Finding the Fourth Proportional to 30,805.19, 42,510.38 and 17,375.37

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Solution

The fourth proportional to 30,805.19, 42,510.38 and 17,375.37 is: 23,977.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,805.19 : 42,510.38 = 17,375.37 : x
  2. Step 2: Convert to fraction form
    30,805.19/42,510.38 = 17,375.37/x
  3. Step 3: Cross multiply
    30,805.19x = 42,510.38 × 17,375.37
  4. Step 4: Simplify right side
    30,805.19x = 738,633,494.46
  5. Step 5: Solve for x
    x = 738,633,494.46/30,805.19
  6. Step 6: Final answer
    x = 23,977.57

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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.