Home / 20,465.42-30,704.61-7,317.50

Finding the Fourth Proportional to 20,465.42, 30,704.61 and 7,317.50

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Solution

The fourth proportional to 20,465.42, 30,704.61 and 7,317.50 is: 10,978.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,465.42 : 30,704.61 = 7,317.50 : x
  2. Step 2: Convert to fraction form
    20,465.42/30,704.61 = 7,317.50/x
  3. Step 3: Cross multiply
    20,465.42x = 30,704.61 × 7,317.50
  4. Step 4: Simplify right side
    20,465.42x = 224,680,983.68
  5. Step 5: Solve for x
    x = 224,680,983.68/20,465.42
  6. Step 6: Final answer
    x = 10,978.57

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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.