Home / 20,868.45-31,296.44-11,002.35

Finding the Fourth Proportional to 20,868.45, 31,296.44 and 11,002.35

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Solution

The fourth proportional to 20,868.45, 31,296.44 and 11,002.35 is: 16,500.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,868.45 : 31,296.44 = 11,002.35 : x
  2. Step 2: Convert to fraction form
    20,868.45/31,296.44 = 11,002.35/x
  3. Step 3: Cross multiply
    20,868.45x = 31,296.44 × 11,002.35
  4. Step 4: Simplify right side
    20,868.45x = 344,334,331.62
  5. Step 5: Solve for x
    x = 344,334,331.62/20,868.45
  6. Step 6: Final answer
    x = 16,500.24

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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.