Home / 20,830.54-31,245.90-5,035.55

Finding the Fourth Proportional to 20,830.54, 31,245.90 and 5,035.55

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Solution

The fourth proportional to 20,830.54, 31,245.90 and 5,035.55 is: 7,553.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,830.54 : 31,245.90 = 5,035.55 : x
  2. Step 2: Convert to fraction form
    20,830.54/31,245.90 = 5,035.55/x
  3. Step 3: Cross multiply
    20,830.54x = 31,245.90 × 5,035.55
  4. Step 4: Simplify right side
    20,830.54x = 157,340,110.34
  5. Step 5: Solve for x
    x = 157,340,110.34/20,830.54
  6. Step 6: Final answer
    x = 7,553.34

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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.