Home / 20,012.70-30,014.47-7,534.03

Finding the Fourth Proportional to 20,012.70, 30,014.47 and 7,534.03

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Solution

The fourth proportional to 20,012.70, 30,014.47 and 7,534.03 is: 11,299.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,012.70 : 30,014.47 = 7,534.03 : x
  2. Step 2: Convert to fraction form
    20,012.70/30,014.47 = 7,534.03/x
  3. Step 3: Cross multiply
    20,012.70x = 30,014.47 × 7,534.03
  4. Step 4: Simplify right side
    20,012.70x = 226,129,917.41
  5. Step 5: Solve for x
    x = 226,129,917.41/20,012.70
  6. Step 6: Final answer
    x = 11,299.32

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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.