Home / 39,654.72-59,384.88-18,828

Finding the Fourth Proportional to 39,654.72, 59,384.88 and 18,828

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Solution

The fourth proportional to 39,654.72, 59,384.88 and 18,828 is: 28,195.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,654.72 : 59,384.88 = 18,828 : x
  2. Step 2: Convert to fraction form
    39,654.72/59,384.88 = 18,828/x
  3. Step 3: Cross multiply
    39,654.72x = 59,384.88 × 18,828
  4. Step 4: Simplify right side
    39,654.72x = 1,118,098,520.64
  5. Step 5: Solve for x
    x = 1,118,098,520.64/39,654.72
  6. Step 6: Final answer
    x = 28,195.85

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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.