Home / 39,765.82-59,648.74-18,690.39

Finding the Fourth Proportional to 39,765.82, 59,648.74 and 18,690.39

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Solution

The fourth proportional to 39,765.82, 59,648.74 and 18,690.39 is: 28,035.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,765.82 : 59,648.74 = 18,690.39 : x
  2. Step 2: Convert to fraction form
    39,765.82/59,648.74 = 18,690.39/x
  3. Step 3: Cross multiply
    39,765.82x = 59,648.74 × 18,690.39
  4. Step 4: Simplify right side
    39,765.82x = 1,114,857,915.36
  5. Step 5: Solve for x
    x = 1,114,857,915.36/39,765.82
  6. Step 6: Final answer
    x = 28,035.58

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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.