Home / 13,020.44-19,530.65-3,159.71

Finding the Fourth Proportional to 13,020.44, 19,530.65 and 3,159.71

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Solution

The fourth proportional to 13,020.44, 19,530.65 and 3,159.71 is: 4,739.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.44 : 19,530.65 = 3,159.71 : x
  2. Step 2: Convert to fraction form
    13,020.44/19,530.65 = 3,159.71/x
  3. Step 3: Cross multiply
    13,020.44x = 19,530.65 × 3,159.71
  4. Step 4: Simplify right side
    13,020.44x = 61,711,076.66
  5. Step 5: Solve for x
    x = 61,711,076.66/13,020.44
  6. Step 6: Final answer
    x = 4,739.56

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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.