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Finding the Fourth Proportional to 28,828, 39,776.54 and 17,503.44

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Solution

The fourth proportional to 28,828, 39,776.54 and 17,503.44 is: 24,151.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,828 : 39,776.54 = 17,503.44 : x
  2. Step 2: Convert to fraction form
    28,828/39,776.54 = 17,503.44/x
  3. Step 3: Cross multiply
    28,828x = 39,776.54 × 17,503.44
  4. Step 4: Simplify right side
    28,828x = 696,226,281.30
  5. Step 5: Solve for x
    x = 696,226,281.30/28,828
  6. Step 6: Final answer
    x = 24,151.04

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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.