Home / 40,789.31-61,215.14-19,741.73

Finding the Fourth Proportional to 40,789.31, 61,215.14 and 19,741.73

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Solution

The fourth proportional to 40,789.31, 61,215.14 and 19,741.73 is: 29,627.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,789.31 : 61,215.14 = 19,741.73 : x
  2. Step 2: Convert to fraction form
    40,789.31/61,215.14 = 19,741.73/x
  3. Step 3: Cross multiply
    40,789.31x = 61,215.14 × 19,741.73
  4. Step 4: Simplify right side
    40,789.31x = 1,208,492,509.07
  5. Step 5: Solve for x
    x = 1,208,492,509.07/40,789.31
  6. Step 6: Final answer
    x = 29,627.68

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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.