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Finding the Fourth Proportional to 43,709.38, 65,564.12 and 18,733.22

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Solution

The fourth proportional to 43,709.38, 65,564.12 and 18,733.22 is: 28,099.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,709.38 : 65,564.12 = 18,733.22 : x
  2. Step 2: Convert to fraction form
    43,709.38/65,564.12 = 18,733.22/x
  3. Step 3: Cross multiply
    43,709.38x = 65,564.12 × 18,733.22
  4. Step 4: Simplify right side
    43,709.38x = 1,228,227,084.07
  5. Step 5: Solve for x
    x = 1,228,227,084.07/43,709.38
  6. Step 6: Final answer
    x = 28,099.85

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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.