Home / 30,889.80-42,626.52-17,278.56

Finding the Fourth Proportional to 30,889.80, 42,626.52 and 17,278.56

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Solution

The fourth proportional to 30,889.80, 42,626.52 and 17,278.56 is: 23,843.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,889.80 : 42,626.52 = 17,278.56 : x
  2. Step 2: Convert to fraction form
    30,889.80/42,626.52 = 17,278.56/x
  3. Step 3: Cross multiply
    30,889.80x = 42,626.52 × 17,278.56
  4. Step 4: Simplify right side
    30,889.80x = 736,524,883.41
  5. Step 5: Solve for x
    x = 736,524,883.41/30,889.80
  6. Step 6: Final answer
    x = 23,843.63

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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.