Home / 34,122.55-51,216.23-21,000.55

Finding the Fourth Proportional to 34,122.55, 51,216.23 and 21,000.55

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Solution

The fourth proportional to 34,122.55, 51,216.23 and 21,000.55 is: 31,520.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,122.55 : 51,216.23 = 21,000.55 : x
  2. Step 2: Convert to fraction form
    34,122.55/51,216.23 = 21,000.55/x
  3. Step 3: Cross multiply
    34,122.55x = 51,216.23 × 21,000.55
  4. Step 4: Simplify right side
    34,122.55x = 1,075,568,893.92
  5. Step 5: Solve for x
    x = 1,075,568,893.92/34,122.55
  6. Step 6: Final answer
    x = 31,520.77

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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.