Home / 20,670.27-28,524.98-11,238.82

Finding the Fourth Proportional to 20,670.27, 28,524.98 and 11,238.82

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Solution

The fourth proportional to 20,670.27, 28,524.98 and 11,238.82 is: 15,509.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,670.27 : 28,524.98 = 11,238.82 : x
  2. Step 2: Convert to fraction form
    20,670.27/28,524.98 = 11,238.82/x
  3. Step 3: Cross multiply
    20,670.27x = 28,524.98 × 11,238.82
  4. Step 4: Simplify right side
    20,670.27x = 320,587,115.72
  5. Step 5: Solve for x
    x = 320,587,115.72/20,670.27
  6. Step 6: Final answer
    x = 15,509.58

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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.