Home / 39,258.84-54,175.65-21,353.82

Finding the Fourth Proportional to 39,258.84, 54,175.65 and 21,353.82

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Solution

The fourth proportional to 39,258.84, 54,175.65 and 21,353.82 is: 29,467.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,258.84 : 54,175.65 = 21,353.82 : x
  2. Step 2: Convert to fraction form
    39,258.84/54,175.65 = 21,353.82/x
  3. Step 3: Cross multiply
    39,258.84x = 54,175.65 × 21,353.82
  4. Step 4: Simplify right side
    39,258.84x = 1,156,857,078.48
  5. Step 5: Solve for x
    x = 1,156,857,078.48/39,258.84
  6. Step 6: Final answer
    x = 29,467.43

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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.