Home / 28,173.51-42,198.85-14,109.01

Finding the Fourth Proportional to 28,173.51, 42,198.85 and 14,109.01

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Solution

The fourth proportional to 28,173.51, 42,198.85 and 14,109.01 is: 21,132.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,173.51 : 42,198.85 = 14,109.01 : x
  2. Step 2: Convert to fraction form
    28,173.51/42,198.85 = 14,109.01/x
  3. Step 3: Cross multiply
    28,173.51x = 42,198.85 × 14,109.01
  4. Step 4: Simplify right side
    28,173.51x = 595,383,855.87
  5. Step 5: Solve for x
    x = 595,383,855.87/28,173.51
  6. Step 6: Final answer
    x = 21,132.75

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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.