Home / 27,641.64-41,430-12,819.35

Finding the Fourth Proportional to 27,641.64, 41,430 and 12,819.35

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Solution

The fourth proportional to 27,641.64, 41,430 and 12,819.35 is: 19,213.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,641.64 : 41,430 = 12,819.35 : x
  2. Step 2: Convert to fraction form
    27,641.64/41,430 = 12,819.35/x
  3. Step 3: Cross multiply
    27,641.64x = 41,430 × 12,819.35
  4. Step 4: Simplify right side
    27,641.64x = 531,105,463.35
  5. Step 5: Solve for x
    x = 531,105,463.35/27,641.64
  6. Step 6: Final answer
    x = 19,213.96

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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.