Home / 20,635.94-28,477.67-11,204.49

Finding the Fourth Proportional to 20,635.94, 28,477.67 and 11,204.49

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Solution

The fourth proportional to 20,635.94, 28,477.67 and 11,204.49 is: 15,462.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,635.94 : 28,477.67 = 11,204.49 : x
  2. Step 2: Convert to fraction form
    20,635.94/28,477.67 = 11,204.49/x
  3. Step 3: Cross multiply
    20,635.94x = 28,477.67 × 11,204.49
  4. Step 4: Simplify right side
    20,635.94x = 319,077,712.72
  5. Step 5: Solve for x
    x = 319,077,712.72/20,635.94
  6. Step 6: Final answer
    x = 15,462.24

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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.