Home / 20,635.27-28,476.56-11,203.83

Finding the Fourth Proportional to 20,635.27, 28,476.56 and 11,203.83

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Solution

The fourth proportional to 20,635.27, 28,476.56 and 11,203.83 is: 15,461.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,635.27 : 28,476.56 = 11,203.83 : x
  2. Step 2: Convert to fraction form
    20,635.27/28,476.56 = 11,203.83/x
  3. Step 3: Cross multiply
    20,635.27x = 28,476.56 × 11,203.83
  4. Step 4: Simplify right side
    20,635.27x = 319,046,537.22
  5. Step 5: Solve for x
    x = 319,046,537.22/20,635.27
  6. Step 6: Final answer
    x = 15,461.23

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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.