Home / 26,577-39,890.10-13,438.60

Finding the Fourth Proportional to 26,577, 39,890.10 and 13,438.60

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Solution

The fourth proportional to 26,577, 39,890.10 and 13,438.60 is: 20,170.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,577 : 39,890.10 = 13,438.60 : x
  2. Step 2: Convert to fraction form
    26,577/39,890.10 = 13,438.60/x
  3. Step 3: Cross multiply
    26,577x = 39,890.10 × 13,438.60
  4. Step 4: Simplify right side
    26,577x = 536,067,097.86
  5. Step 5: Solve for x
    x = 536,067,097.86/26,577
  6. Step 6: Final answer
    x = 20,170.34

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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.