Home / 19,783.12-29,653.80-13,541.48

Finding the Fourth Proportional to 19,783.12, 29,653.80 and 13,541.48

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Solution

The fourth proportional to 19,783.12, 29,653.80 and 13,541.48 is: 20,297.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,783.12 : 29,653.80 = 13,541.48 : x
  2. Step 2: Convert to fraction form
    19,783.12/29,653.80 = 13,541.48/x
  3. Step 3: Cross multiply
    19,783.12x = 29,653.80 × 13,541.48
  4. Step 4: Simplify right side
    19,783.12x = 401,556,339.62
  5. Step 5: Solve for x
    x = 401,556,339.62/19,783.12
  6. Step 6: Final answer
    x = 20,297.93

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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.