Home / 20,620.62-31,085.45-19,247.41

Finding the Fourth Proportional to 20,620.62, 31,085.45 and 19,247.41

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Solution

The fourth proportional to 20,620.62, 31,085.45 and 19,247.41 is: 29,015.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620.62 : 31,085.45 = 19,247.41 : x
  2. Step 2: Convert to fraction form
    20,620.62/31,085.45 = 19,247.41/x
  3. Step 3: Cross multiply
    20,620.62x = 31,085.45 × 19,247.41
  4. Step 4: Simplify right side
    20,620.62x = 598,314,401.18
  5. Step 5: Solve for x
    x = 598,314,401.18/20,620.62
  6. Step 6: Final answer
    x = 29,015.34

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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.