Home / 26,358.12-39,539.21-7,638.42

Finding the Fourth Proportional to 26,358.12, 39,539.21 and 7,638.42

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Solution

The fourth proportional to 26,358.12, 39,539.21 and 7,638.42 is: 11,458.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,358.12 : 39,539.21 = 7,638.42 : x
  2. Step 2: Convert to fraction form
    26,358.12/39,539.21 = 7,638.42/x
  3. Step 3: Cross multiply
    26,358.12x = 39,539.21 × 7,638.42
  4. Step 4: Simplify right side
    26,358.12x = 302,016,894.75
  5. Step 5: Solve for x
    x = 302,016,894.75/26,358.12
  6. Step 6: Final answer
    x = 11,458.21

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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.