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Finding the Fourth Proportional to 39,288, 58,853.16 and 19,506.72

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Solution

The fourth proportional to 39,288, 58,853.16 and 19,506.72 is: 29,220.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,288 : 58,853.16 = 19,506.72 : x
  2. Step 2: Convert to fraction form
    39,288/58,853.16 = 19,506.72/x
  3. Step 3: Cross multiply
    39,288x = 58,853.16 × 19,506.72
  4. Step 4: Simplify right side
    39,288x = 1,148,032,113.24
  5. Step 5: Solve for x
    x = 1,148,032,113.24/39,288
  6. Step 6: Final answer
    x = 29,220.94

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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.