Home / 20,064.09-30,079.71-7,577.03

Finding the Fourth Proportional to 20,064.09, 30,079.71 and 7,577.03

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Solution

The fourth proportional to 20,064.09, 30,079.71 and 7,577.03 is: 11,359.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,064.09 : 30,079.71 = 7,577.03 : x
  2. Step 2: Convert to fraction form
    20,064.09/30,079.71 = 7,577.03/x
  3. Step 3: Cross multiply
    20,064.09x = 30,079.71 × 7,577.03
  4. Step 4: Simplify right side
    20,064.09x = 227,914,865.06
  5. Step 5: Solve for x
    x = 227,914,865.06/20,064.09
  6. Step 6: Final answer
    x = 11,359.34

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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.