Home / 28,271.34-38,997.18-20,324.34

Finding the Fourth Proportional to 28,271.34, 38,997.18 and 20,324.34

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Solution

The fourth proportional to 28,271.34, 38,997.18 and 20,324.34 is: 28,035.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,271.34 : 38,997.18 = 20,324.34 : x
  2. Step 2: Convert to fraction form
    28,271.34/38,997.18 = 20,324.34/x
  3. Step 3: Cross multiply
    28,271.34x = 38,997.18 × 20,324.34
  4. Step 4: Simplify right side
    28,271.34x = 792,591,945.36
  5. Step 5: Solve for x
    x = 792,591,945.36/28,271.34
  6. Step 6: Final answer
    x = 28,035.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.