Home / 20,360.94-28,098.08-11,408.51

Finding the Fourth Proportional to 20,360.94, 28,098.08 and 11,408.51

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Solution

The fourth proportional to 20,360.94, 28,098.08 and 11,408.51 is: 15,743.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.94 : 28,098.08 = 11,408.51 : x
  2. Step 2: Convert to fraction form
    20,360.94/28,098.08 = 11,408.51/x
  3. Step 3: Cross multiply
    20,360.94x = 28,098.08 × 11,408.51
  4. Step 4: Simplify right side
    20,360.94x = 320,557,184.16
  5. Step 5: Solve for x
    x = 320,557,184.16/20,360.94
  6. Step 6: Final answer
    x = 15,743.73

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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.