Home / 20,648.58-30,972.83-19,596.77

Finding the Fourth Proportional to 20,648.58, 30,972.83 and 19,596.77

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Solution

The fourth proportional to 20,648.58, 30,972.83 and 19,596.77 is: 29,395.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,648.58 : 30,972.83 = 19,596.77 : x
  2. Step 2: Convert to fraction form
    20,648.58/30,972.83 = 19,596.77/x
  3. Step 3: Cross multiply
    20,648.58x = 30,972.83 × 19,596.77
  4. Step 4: Simplify right side
    20,648.58x = 606,967,172.91
  5. Step 5: Solve for x
    x = 606,967,172.91/20,648.58
  6. Step 6: Final answer
    x = 29,395.10

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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.