Home / 34,539.26-47,663.64-19,431.90

Finding the Fourth Proportional to 34,539.26, 47,663.64 and 19,431.90

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Solution

The fourth proportional to 34,539.26, 47,663.64 and 19,431.90 is: 26,815.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,539.26 : 47,663.64 = 19,431.90 : x
  2. Step 2: Convert to fraction form
    34,539.26/47,663.64 = 19,431.90/x
  3. Step 3: Cross multiply
    34,539.26x = 47,663.64 × 19,431.90
  4. Step 4: Simplify right side
    34,539.26x = 926,195,086.12
  5. Step 5: Solve for x
    x = 926,195,086.12/34,539.26
  6. Step 6: Final answer
    x = 26,815.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.