Home / 20,325.60-30,458.16-12,007.44

Finding the Fourth Proportional to 20,325.60, 30,458.16 and 12,007.44

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Solution

The fourth proportional to 20,325.60, 30,458.16 and 12,007.44 is: 17,993.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.60 : 30,458.16 = 12,007.44 : x
  2. Step 2: Convert to fraction form
    20,325.60/30,458.16 = 12,007.44/x
  3. Step 3: Cross multiply
    20,325.60x = 30,458.16 × 12,007.44
  4. Step 4: Simplify right side
    20,325.60x = 365,724,528.71
  5. Step 5: Solve for x
    x = 365,724,528.71/20,325.60
  6. Step 6: Final answer
    x = 17,993.30

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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.