Home / 20,418.48-30,620.16-7,267.32

Finding the Fourth Proportional to 20,418.48, 30,620.16 and 7,267.32

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Solution

The fourth proportional to 20,418.48, 30,620.16 and 7,267.32 is: 10,898.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,418.48 : 30,620.16 = 7,267.32 : x
  2. Step 2: Convert to fraction form
    20,418.48/30,620.16 = 7,267.32/x
  3. Step 3: Cross multiply
    20,418.48x = 30,620.16 × 7,267.32
  4. Step 4: Simplify right side
    20,418.48x = 222,526,501.17
  5. Step 5: Solve for x
    x = 222,526,501.17/20,418.48
  6. Step 6: Final answer
    x = 10,898.29

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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.