Home / 20,977.37-31,609.49-17,359.37

Finding the Fourth Proportional to 20,977.37, 31,609.49 and 17,359.37

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Solution

The fourth proportional to 20,977.37, 31,609.49 and 17,359.37 is: 26,157.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,977.37 : 31,609.49 = 17,359.37 : x
  2. Step 2: Convert to fraction form
    20,977.37/31,609.49 = 17,359.37/x
  3. Step 3: Cross multiply
    20,977.37x = 31,609.49 × 17,359.37
  4. Step 4: Simplify right side
    20,977.37x = 548,720,832.42
  5. Step 5: Solve for x
    x = 548,720,832.42/20,977.37
  6. Step 6: Final answer
    x = 26,157.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.