Home / 19,370.94-29,030.88-7,677.78

Finding the Fourth Proportional to 19,370.94, 29,030.88 and 7,677.78

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Solution

The fourth proportional to 19,370.94, 29,030.88 and 7,677.78 is: 11,506.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,370.94 : 29,030.88 = 7,677.78 : x
  2. Step 2: Convert to fraction form
    19,370.94/29,030.88 = 7,677.78/x
  3. Step 3: Cross multiply
    19,370.94x = 29,030.88 × 7,677.78
  4. Step 4: Simplify right side
    19,370.94x = 222,892,709.85
  5. Step 5: Solve for x
    x = 222,892,709.85/19,370.94
  6. Step 6: Final answer
    x = 11,506.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.