Home / 20,508.84-28,302.23-11,077.41

Finding the Fourth Proportional to 20,508.84, 28,302.23 and 11,077.41

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Solution

The fourth proportional to 20,508.84, 28,302.23 and 11,077.41 is: 15,286.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,508.84 : 28,302.23 = 11,077.41 : x
  2. Step 2: Convert to fraction form
    20,508.84/28,302.23 = 11,077.41/x
  3. Step 3: Cross multiply
    20,508.84x = 28,302.23 × 11,077.41
  4. Step 4: Simplify right side
    20,508.84x = 313,515,350.24
  5. Step 5: Solve for x
    x = 313,515,350.24/20,508.84
  6. Step 6: Final answer
    x = 15,286.84

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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.