Home / 20,651.05-30,977.76-5,858.80

Finding the Fourth Proportional to 20,651.05, 30,977.76 and 5,858.80

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Solution

The fourth proportional to 20,651.05, 30,977.76 and 5,858.80 is: 8,788.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,651.05 : 30,977.76 = 5,858.80 : x
  2. Step 2: Convert to fraction form
    20,651.05/30,977.76 = 5,858.80/x
  3. Step 3: Cross multiply
    20,651.05x = 30,977.76 × 5,858.80
  4. Step 4: Simplify right side
    20,651.05x = 181,492,470.99
  5. Step 5: Solve for x
    x = 181,492,470.99/20,651.05
  6. Step 6: Final answer
    x = 8,788.53

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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.