Home / 20,593.51-28,419.20-11,162.14

Finding the Fourth Proportional to 20,593.51, 28,419.20 and 11,162.14

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Solution

The fourth proportional to 20,593.51, 28,419.20 and 11,162.14 is: 15,403.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,593.51 : 28,419.20 = 11,162.14 : x
  2. Step 2: Convert to fraction form
    20,593.51/28,419.20 = 11,162.14/x
  3. Step 3: Cross multiply
    20,593.51x = 28,419.20 × 11,162.14
  4. Step 4: Simplify right side
    20,593.51x = 317,219,089.09
  5. Step 5: Solve for x
    x = 317,219,089.09/20,593.51
  6. Step 6: Final answer
    x = 15,403.84

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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.