Home / 20,012.20-30,013.72-7,533.53

Finding the Fourth Proportional to 20,012.20, 30,013.72 and 7,533.53

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Solution

The fourth proportional to 20,012.20, 30,013.72 and 7,533.53 is: 11,298.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,012.20 : 30,013.72 = 7,533.53 : x
  2. Step 2: Convert to fraction form
    20,012.20/30,013.72 = 7,533.53/x
  3. Step 3: Cross multiply
    20,012.20x = 30,013.72 × 7,533.53
  4. Step 4: Simplify right side
    20,012.20x = 226,109,260.03
  5. Step 5: Solve for x
    x = 226,109,260.03/20,012.20
  6. Step 6: Final answer
    x = 11,298.57

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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.