Home / 20,569.62-28,385.96-11,620.02

Finding the Fourth Proportional to 20,569.62, 28,385.96 and 11,620.02

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Solution

The fourth proportional to 20,569.62, 28,385.96 and 11,620.02 is: 16,035.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,569.62 : 28,385.96 = 11,620.02 : x
  2. Step 2: Convert to fraction form
    20,569.62/28,385.96 = 11,620.02/x
  3. Step 3: Cross multiply
    20,569.62x = 28,385.96 × 11,620.02
  4. Step 4: Simplify right side
    20,569.62x = 329,845,364.82
  5. Step 5: Solve for x
    x = 329,845,364.82/20,569.62
  6. Step 6: Final answer
    x = 16,035.56

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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.