Home / 20,735.68-28,736.24-20,341.84

Finding the Fourth Proportional to 20,735.68, 28,736.24 and 20,341.84

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Solution

The fourth proportional to 20,735.68, 28,736.24 and 20,341.84 is: 28,190.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.68 : 28,736.24 = 20,341.84 : x
  2. Step 2: Convert to fraction form
    20,735.68/28,736.24 = 20,341.84/x
  3. Step 3: Cross multiply
    20,735.68x = 28,736.24 × 20,341.84
  4. Step 4: Simplify right side
    20,735.68x = 584,547,996.28
  5. Step 5: Solve for x
    x = 584,547,996.28/20,735.68
  6. Step 6: Final answer
    x = 28,190.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.