Home / 20,211.64-30,317.58-7,054.81

Finding the Fourth Proportional to 20,211.64, 30,317.58 and 7,054.81

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Solution

The fourth proportional to 20,211.64, 30,317.58 and 7,054.81 is: 10,582.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.64 : 30,317.58 = 7,054.81 : x
  2. Step 2: Convert to fraction form
    20,211.64/30,317.58 = 7,054.81/x
  3. Step 3: Cross multiply
    20,211.64x = 30,317.58 × 7,054.81
  4. Step 4: Simplify right side
    20,211.64x = 213,884,766.56
  5. Step 5: Solve for x
    x = 213,884,766.56/20,211.64
  6. Step 6: Final answer
    x = 10,582.26

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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.