Home / 19,784.12-29,655.30-13,542.48

Finding the Fourth Proportional to 19,784.12, 29,655.30 and 13,542.48

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Solution

The fourth proportional to 19,784.12, 29,655.30 and 13,542.48 is: 20,299.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,784.12 : 29,655.30 = 13,542.48 : x
  2. Step 2: Convert to fraction form
    19,784.12/29,655.30 = 13,542.48/x
  3. Step 3: Cross multiply
    19,784.12x = 29,655.30 × 13,542.48
  4. Step 4: Simplify right side
    19,784.12x = 401,606,307.14
  5. Step 5: Solve for x
    x = 401,606,307.14/19,784.12
  6. Step 6: Final answer
    x = 20,299.43

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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.