Home / 26,442.20-39,665.10-7,722.20

Finding the Fourth Proportional to 26,442.20, 39,665.10 and 7,722.20

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Solution

The fourth proportional to 26,442.20, 39,665.10 and 7,722.20 is: 11,583.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,442.20 : 39,665.10 = 7,722.20 : x
  2. Step 2: Convert to fraction form
    26,442.20/39,665.10 = 7,722.20/x
  3. Step 3: Cross multiply
    26,442.20x = 39,665.10 × 7,722.20
  4. Step 4: Simplify right side
    26,442.20x = 306,301,835.22
  5. Step 5: Solve for x
    x = 306,301,835.22/26,442.20
  6. Step 6: Final answer
    x = 11,583.83

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1.5x scale

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.