Home / 30,470.29-45,720.82-13,819.71

Finding the Fourth Proportional to 30,470.29, 45,720.82 and 13,819.71

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Solution

The fourth proportional to 30,470.29, 45,720.82 and 13,819.71 is: 20,736.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,470.29 : 45,720.82 = 13,819.71 : x
  2. Step 2: Convert to fraction form
    30,470.29/45,720.82 = 13,819.71/x
  3. Step 3: Cross multiply
    30,470.29x = 45,720.82 × 13,819.71
  4. Step 4: Simplify right side
    30,470.29x = 631,848,267.36
  5. Step 5: Solve for x
    x = 631,848,267.36/30,470.29
  6. Step 6: Final answer
    x = 20,736.54

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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.