Home / 43,289.79-64,941.36-18,330

Finding the Fourth Proportional to 43,289.79, 64,941.36 and 18,330

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Solution

The fourth proportional to 43,289.79, 64,941.36 and 18,330 is: 27,497.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,289.79 : 64,941.36 = 18,330 : x
  2. Step 2: Convert to fraction form
    43,289.79/64,941.36 = 18,330/x
  3. Step 3: Cross multiply
    43,289.79x = 64,941.36 × 18,330
  4. Step 4: Simplify right side
    43,289.79x = 1,190,375,128.80
  5. Step 5: Solve for x
    x = 1,190,375,128.80/43,289.79
  6. Step 6: Final answer
    x = 27,497.83

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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.