Home / 20,245.04-30,367.56-10,378.02

Finding the Fourth Proportional to 20,245.04, 30,367.56 and 10,378.02

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Solution

The fourth proportional to 20,245.04, 30,367.56 and 10,378.02 is: 15,567.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,245.04 : 30,367.56 = 10,378.02 : x
  2. Step 2: Convert to fraction form
    20,245.04/30,367.56 = 10,378.02/x
  3. Step 3: Cross multiply
    20,245.04x = 30,367.56 × 10,378.02
  4. Step 4: Simplify right side
    20,245.04x = 315,155,145.03
  5. Step 5: Solve for x
    x = 315,155,145.03/20,245.04
  6. Step 6: Final answer
    x = 15,567.03

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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.