Home / 26,456.47-39,739.58-21,396.35

Finding the Fourth Proportional to 26,456.47, 39,739.58 and 21,396.35

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Solution

The fourth proportional to 26,456.47, 39,739.58 and 21,396.35 is: 32,138.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,456.47 : 39,739.58 = 21,396.35 : x
  2. Step 2: Convert to fraction form
    26,456.47/39,739.58 = 21,396.35/x
  3. Step 3: Cross multiply
    26,456.47x = 39,739.58 × 21,396.35
  4. Step 4: Simplify right side
    26,456.47x = 850,281,656.85
  5. Step 5: Solve for x
    x = 850,281,656.85/26,456.47
  6. Step 6: Final answer
    x = 32,138.90

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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.