Home / 20,081.62-30,066.26-15,135.76

Finding the Fourth Proportional to 20,081.62, 30,066.26 and 15,135.76

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Solution

The fourth proportional to 20,081.62, 30,066.26 and 15,135.76 is: 22,661.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081.62 : 30,066.26 = 15,135.76 : x
  2. Step 2: Convert to fraction form
    20,081.62/30,066.26 = 15,135.76/x
  3. Step 3: Cross multiply
    20,081.62x = 30,066.26 × 15,135.76
  4. Step 4: Simplify right side
    20,081.62x = 455,075,488.24
  5. Step 5: Solve for x
    x = 455,075,488.24/20,081.62
  6. Step 6: Final answer
    x = 22,661.30

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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.