Home / 20,621.60-30,926.23-10,755.50

Finding the Fourth Proportional to 20,621.60, 30,926.23 and 10,755.50

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Solution

The fourth proportional to 20,621.60, 30,926.23 and 10,755.50 is: 16,130.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,621.60 : 30,926.23 = 10,755.50 : x
  2. Step 2: Convert to fraction form
    20,621.60/30,926.23 = 10,755.50/x
  3. Step 3: Cross multiply
    20,621.60x = 30,926.23 × 10,755.50
  4. Step 4: Simplify right side
    20,621.60x = 332,627,012.99
  5. Step 5: Solve for x
    x = 332,627,012.99/20,621.60
  6. Step 6: Final answer
    x = 16,130.03

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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.