Home / 30,895.20-42,651.18-19,576.44

Finding the Fourth Proportional to 30,895.20, 42,651.18 and 19,576.44

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Solution

The fourth proportional to 30,895.20, 42,651.18 and 19,576.44 is: 27,025.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,895.20 : 42,651.18 = 19,576.44 : x
  2. Step 2: Convert to fraction form
    30,895.20/42,651.18 = 19,576.44/x
  3. Step 3: Cross multiply
    30,895.20x = 42,651.18 × 19,576.44
  4. Step 4: Simplify right side
    30,895.20x = 834,958,266.20
  5. Step 5: Solve for x
    x = 834,958,266.20/30,895.20
  6. Step 6: Final answer
    x = 27,025.50

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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.