Home / 46,257.84-69,391.12-12,977.78

Finding the Fourth Proportional to 46,257.84, 69,391.12 and 12,977.78

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Solution

The fourth proportional to 46,257.84, 69,391.12 and 12,977.78 is: 19,467.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,257.84 : 69,391.12 = 12,977.78 : x
  2. Step 2: Convert to fraction form
    46,257.84/69,391.12 = 12,977.78/x
  3. Step 3: Cross multiply
    46,257.84x = 69,391.12 × 12,977.78
  4. Step 4: Simplify right side
    46,257.84x = 900,542,277.47
  5. Step 5: Solve for x
    x = 900,542,277.47/46,257.84
  6. Step 6: Final answer
    x = 19,467.88

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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.