Home / 20,454.81-30,704.99-10,591.44

Finding the Fourth Proportional to 20,454.81, 30,704.99 and 10,591.44

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Solution

The fourth proportional to 20,454.81, 30,704.99 and 10,591.44 is: 15,898.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,454.81 : 30,704.99 = 10,591.44 : x
  2. Step 2: Convert to fraction form
    20,454.81/30,704.99 = 10,591.44/x
  3. Step 3: Cross multiply
    20,454.81x = 30,704.99 × 10,591.44
  4. Step 4: Simplify right side
    20,454.81x = 325,210,059.29
  5. Step 5: Solve for x
    x = 325,210,059.29/20,454.81
  6. Step 6: Final answer
    x = 15,898.95

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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.