Home / 20,673.83-28,534.96-11,726.57

Finding the Fourth Proportional to 20,673.83, 28,534.96 and 11,726.57

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Solution

The fourth proportional to 20,673.83, 28,534.96 and 11,726.57 is: 16,185.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,673.83 : 28,534.96 = 11,726.57 : x
  2. Step 2: Convert to fraction form
    20,673.83/28,534.96 = 11,726.57/x
  3. Step 3: Cross multiply
    20,673.83x = 28,534.96 × 11,726.57
  4. Step 4: Simplify right side
    20,673.83x = 334,617,291.88
  5. Step 5: Solve for x
    x = 334,617,291.88/20,673.83
  6. Step 6: Final answer
    x = 16,185.55

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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.