Home / 20,161.99-30,239.57-6,118.63

Finding the Fourth Proportional to 20,161.99, 30,239.57 and 6,118.63

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Solution

The fourth proportional to 20,161.99, 30,239.57 and 6,118.63 is: 9,176.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.99 : 30,239.57 = 6,118.63 : x
  2. Step 2: Convert to fraction form
    20,161.99/30,239.57 = 6,118.63/x
  3. Step 3: Cross multiply
    20,161.99x = 30,239.57 × 6,118.63
  4. Step 4: Simplify right side
    20,161.99x = 185,024,740.19
  5. Step 5: Solve for x
    x = 185,024,740.19/20,161.99
  6. Step 6: Final answer
    x = 9,176.91

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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.