Home / 16,290.88-22,432.32-13,447.68

Finding the Fourth Proportional to 16,290.88, 22,432.32 and 13,447.68

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Solution

The fourth proportional to 16,290.88, 22,432.32 and 13,447.68 is: 18,517.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,290.88 : 22,432.32 = 13,447.68 : x
  2. Step 2: Convert to fraction form
    16,290.88/22,432.32 = 13,447.68/x
  3. Step 3: Cross multiply
    16,290.88x = 22,432.32 × 13,447.68
  4. Step 4: Simplify right side
    16,290.88x = 301,662,661.02
  5. Step 5: Solve for x
    x = 301,662,661.02/16,290.88
  6. Step 6: Final answer
    x = 18,517.27

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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.