Home / 20,593.76-28,419.32-11,162.34

Finding the Fourth Proportional to 20,593.76, 28,419.32 and 11,162.34

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Solution

The fourth proportional to 20,593.76, 28,419.32 and 11,162.34 is: 15,403.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,593.76 : 28,419.32 = 11,162.34 : x
  2. Step 2: Convert to fraction form
    20,593.76/28,419.32 = 11,162.34/x
  3. Step 3: Cross multiply
    20,593.76x = 28,419.32 × 11,162.34
  4. Step 4: Simplify right side
    20,593.76x = 317,226,112.41
  5. Step 5: Solve for x
    x = 317,226,112.41/20,593.76
  6. Step 6: Final answer
    x = 15,403.99

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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.