Home / 20,532.39-30,798.31-4,949.89

Finding the Fourth Proportional to 20,532.39, 30,798.31 and 4,949.89

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Solution

The fourth proportional to 20,532.39, 30,798.31 and 4,949.89 is: 7,424.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,532.39 : 30,798.31 = 4,949.89 : x
  2. Step 2: Convert to fraction form
    20,532.39/30,798.31 = 4,949.89/x
  3. Step 3: Cross multiply
    20,532.39x = 30,798.31 × 4,949.89
  4. Step 4: Simplify right side
    20,532.39x = 152,448,080.32
  5. Step 5: Solve for x
    x = 152,448,080.32/20,532.39
  6. Step 6: Final answer
    x = 7,424.76

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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.