Home / 20,319.74-30,492.60-8,632.96

Finding the Fourth Proportional to 20,319.74, 30,492.60 and 8,632.96

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Solution

The fourth proportional to 20,319.74, 30,492.60 and 8,632.96 is: 12,954.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,319.74 : 30,492.60 = 8,632.96 : x
  2. Step 2: Convert to fraction form
    20,319.74/30,492.60 = 8,632.96/x
  3. Step 3: Cross multiply
    20,319.74x = 30,492.60 × 8,632.96
  4. Step 4: Simplify right side
    20,319.74x = 263,241,396.10
  5. Step 5: Solve for x
    x = 263,241,396.10/20,319.74
  6. Step 6: Final answer
    x = 12,954.96

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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.