Home / 20,273.56-30,407.03-7,122.86

Finding the Fourth Proportional to 20,273.56, 30,407.03 and 7,122.86

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Solution

The fourth proportional to 20,273.56, 30,407.03 and 7,122.86 is: 10,683.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,273.56 : 30,407.03 = 7,122.86 : x
  2. Step 2: Convert to fraction form
    20,273.56/30,407.03 = 7,122.86/x
  3. Step 3: Cross multiply
    20,273.56x = 30,407.03 × 7,122.86
  4. Step 4: Simplify right side
    20,273.56x = 216,584,865.67
  5. Step 5: Solve for x
    x = 216,584,865.67/20,273.56
  6. Step 6: Final answer
    x = 10,683.12

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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.