Home / 20,616.60-28,452.28-11,664.48

Finding the Fourth Proportional to 20,616.60, 28,452.28 and 11,664.48

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Solution

The fourth proportional to 20,616.60, 28,452.28 and 11,664.48 is: 16,097.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616.60 : 28,452.28 = 11,664.48 : x
  2. Step 2: Convert to fraction form
    20,616.60/28,452.28 = 11,664.48/x
  3. Step 3: Cross multiply
    20,616.60x = 28,452.28 × 11,664.48
  4. Step 4: Simplify right side
    20,616.60x = 331,881,051.01
  5. Step 5: Solve for x
    x = 331,881,051.01/20,616.60
  6. Step 6: Final answer
    x = 16,097.76

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1.5x scale

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.