Home / 19,379.10-29,078.25-7,692.06

Finding the Fourth Proportional to 19,379.10, 29,078.25 and 7,692.06

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Solution

The fourth proportional to 19,379.10, 29,078.25 and 7,692.06 is: 11,541.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,379.10 : 29,078.25 = 7,692.06 : x
  2. Step 2: Convert to fraction form
    19,379.10/29,078.25 = 7,692.06/x
  3. Step 3: Cross multiply
    19,379.10x = 29,078.25 × 7,692.06
  4. Step 4: Simplify right side
    19,379.10x = 223,671,643.70
  5. Step 5: Solve for x
    x = 223,671,643.70/19,379.10
  6. Step 6: Final answer
    x = 11,541.90

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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.