Home / 20,156.88-30,235.26-5,365.80

Finding the Fourth Proportional to 20,156.88, 30,235.26 and 5,365.80

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Solution

The fourth proportional to 20,156.88, 30,235.26 and 5,365.80 is: 8,048.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.88 : 30,235.26 = 5,365.80 : x
  2. Step 2: Convert to fraction form
    20,156.88/30,235.26 = 5,365.80/x
  3. Step 3: Cross multiply
    20,156.88x = 30,235.26 × 5,365.80
  4. Step 4: Simplify right side
    20,156.88x = 162,236,358.11
  5. Step 5: Solve for x
    x = 162,236,358.11/20,156.88
  6. Step 6: Final answer
    x = 8,048.68

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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.