Home / 20,887.37-31,331.05-6,849.56

Finding the Fourth Proportional to 20,887.37, 31,331.05 and 6,849.56

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Solution

The fourth proportional to 20,887.37, 31,331.05 and 6,849.56 is: 10,274.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,887.37 : 31,331.05 = 6,849.56 : x
  2. Step 2: Convert to fraction form
    20,887.37/31,331.05 = 6,849.56/x
  3. Step 3: Cross multiply
    20,887.37x = 31,331.05 × 6,849.56
  4. Step 4: Simplify right side
    20,887.37x = 214,604,006.57
  5. Step 5: Solve for x
    x = 214,604,006.57/20,887.37
  6. Step 6: Final answer
    x = 10,274.34

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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.