Home / 20,322.81-30,484.20-8,627.82

Finding the Fourth Proportional to 20,322.81, 30,484.20 and 8,627.82

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Solution

The fourth proportional to 20,322.81, 30,484.20 and 8,627.82 is: 12,941.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,322.81 : 30,484.20 = 8,627.82 : x
  2. Step 2: Convert to fraction form
    20,322.81/30,484.20 = 8,627.82/x
  3. Step 3: Cross multiply
    20,322.81x = 30,484.20 × 8,627.82
  4. Step 4: Simplify right side
    20,322.81x = 263,012,190.44
  5. Step 5: Solve for x
    x = 263,012,190.44/20,322.81
  6. Step 6: Final answer
    x = 12,941.72

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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.