Home / 20,549.93-30,826.26-7,221.31

Finding the Fourth Proportional to 20,549.93, 30,826.26 and 7,221.31

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Solution

The fourth proportional to 20,549.93, 30,826.26 and 7,221.31 is: 10,832.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,549.93 : 30,826.26 = 7,221.31 : x
  2. Step 2: Convert to fraction form
    20,549.93/30,826.26 = 7,221.31/x
  3. Step 3: Cross multiply
    20,549.93x = 30,826.26 × 7,221.31
  4. Step 4: Simplify right side
    20,549.93x = 222,605,979.60
  5. Step 5: Solve for x
    x = 222,605,979.60/20,549.93
  6. Step 6: Final answer
    x = 10,832.44

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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.