Home / 13,830.12-20,738.69-5,058.90

Finding the Fourth Proportional to 13,830.12, 20,738.69 and 5,058.90

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Solution

The fourth proportional to 13,830.12, 20,738.69 and 5,058.90 is: 7,585.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.12 : 20,738.69 = 5,058.90 : x
  2. Step 2: Convert to fraction form
    13,830.12/20,738.69 = 5,058.90/x
  3. Step 3: Cross multiply
    13,830.12x = 20,738.69 × 5,058.90
  4. Step 4: Simplify right side
    13,830.12x = 104,914,855.15
  5. Step 5: Solve for x
    x = 104,914,855.15/13,830.12
  6. Step 6: Final answer
    x = 7,585.97

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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.