Home / 30,576.45-42,177.60-19,227.99

Finding the Fourth Proportional to 30,576.45, 42,177.60 and 19,227.99

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Solution

The fourth proportional to 30,576.45, 42,177.60 and 19,227.99 is: 26,523.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,576.45 : 42,177.60 = 19,227.99 : x
  2. Step 2: Convert to fraction form
    30,576.45/42,177.60 = 19,227.99/x
  3. Step 3: Cross multiply
    30,576.45x = 42,177.60 × 19,227.99
  4. Step 4: Simplify right side
    30,576.45x = 810,990,471.02
  5. Step 5: Solve for x
    x = 810,990,471.02/30,576.45
  6. Step 6: Final answer
    x = 26,523.37

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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.