Home / 20,653.09-30,983.28-7,330.16

Finding the Fourth Proportional to 20,653.09, 30,983.28 and 7,330.16

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Solution

The fourth proportional to 20,653.09, 30,983.28 and 7,330.16 is: 10,996.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,653.09 : 30,983.28 = 7,330.16 : x
  2. Step 2: Convert to fraction form
    20,653.09/30,983.28 = 7,330.16/x
  3. Step 3: Cross multiply
    20,653.09x = 30,983.28 × 7,330.16
  4. Step 4: Simplify right side
    20,653.09x = 227,112,399.72
  5. Step 5: Solve for x
    x = 227,112,399.72/20,653.09
  6. Step 6: Final answer
    x = 10,996.53

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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.