Home / 20,164.14-30,249.86-10,300.77

Finding the Fourth Proportional to 20,164.14, 30,249.86 and 10,300.77

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Solution

The fourth proportional to 20,164.14, 30,249.86 and 10,300.77 is: 15,453.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.14 : 30,249.86 = 10,300.77 : x
  2. Step 2: Convert to fraction form
    20,164.14/30,249.86 = 10,300.77/x
  3. Step 3: Cross multiply
    20,164.14x = 30,249.86 × 10,300.77
  4. Step 4: Simplify right side
    20,164.14x = 311,596,798.89
  5. Step 5: Solve for x
    x = 311,596,798.89/20,164.14
  6. Step 6: Final answer
    x = 15,453.02

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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.