Home / 20,406.93-30,610.35-7,259.82

Finding the Fourth Proportional to 20,406.93, 30,610.35 and 7,259.82

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Solution

The fourth proportional to 20,406.93, 30,610.35 and 7,259.82 is: 10,889.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,406.93 : 30,610.35 = 7,259.82 : x
  2. Step 2: Convert to fraction form
    20,406.93/30,610.35 = 7,259.82/x
  3. Step 3: Cross multiply
    20,406.93x = 30,610.35 × 7,259.82
  4. Step 4: Simplify right side
    20,406.93x = 222,225,631.14
  5. Step 5: Solve for x
    x = 222,225,631.14/20,406.93
  6. Step 6: Final answer
    x = 10,889.71

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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.