Home / 21,919.86-32,830.56-16,974.54

Finding the Fourth Proportional to 21,919.86, 32,830.56 and 16,974.54

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Solution

The fourth proportional to 21,919.86, 32,830.56 and 16,974.54 is: 25,423.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,919.86 : 32,830.56 = 16,974.54 : x
  2. Step 2: Convert to fraction form
    21,919.86/32,830.56 = 16,974.54/x
  3. Step 3: Cross multiply
    21,919.86x = 32,830.56 × 16,974.54
  4. Step 4: Simplify right side
    21,919.86x = 557,283,653.94
  5. Step 5: Solve for x
    x = 557,283,653.94/21,919.86
  6. Step 6: Final answer
    x = 25,423.69

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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.