Home / 27,771.84-41,657.76-12,189.60

Finding the Fourth Proportional to 27,771.84, 41,657.76 and 12,189.60

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Solution

The fourth proportional to 27,771.84, 41,657.76 and 12,189.60 is: 18,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,771.84 : 41,657.76 = 12,189.60 : x
  2. Step 2: Convert to fraction form
    27,771.84/41,657.76 = 12,189.60/x
  3. Step 3: Cross multiply
    27,771.84x = 41,657.76 × 12,189.60
  4. Step 4: Simplify right side
    27,771.84x = 507,791,431.30
  5. Step 5: Solve for x
    x = 507,791,431.30/27,771.84
  6. Step 6: Final answer
    x = 18,284.40

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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.