Home / 30,257.78-41,749.56-17,680.10

Finding the Fourth Proportional to 30,257.78, 41,749.56 and 17,680.10

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Solution

The fourth proportional to 30,257.78, 41,749.56 and 17,680.10 is: 24,394.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,257.78 : 41,749.56 = 17,680.10 : x
  2. Step 2: Convert to fraction form
    30,257.78/41,749.56 = 17,680.10/x
  3. Step 3: Cross multiply
    30,257.78x = 41,749.56 × 17,680.10
  4. Step 4: Simplify right side
    30,257.78x = 738,136,395.76
  5. Step 5: Solve for x
    x = 738,136,395.76/30,257.78
  6. Step 6: Final answer
    x = 24,394.93

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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.