Home / 20,722.39-31,083.80-16,588.68

Finding the Fourth Proportional to 20,722.39, 31,083.80 and 16,588.68

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Solution

The fourth proportional to 20,722.39, 31,083.80 and 16,588.68 is: 24,883.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722.39 : 31,083.80 = 16,588.68 : x
  2. Step 2: Convert to fraction form
    20,722.39/31,083.80 = 16,588.68/x
  3. Step 3: Cross multiply
    20,722.39x = 31,083.80 × 16,588.68
  4. Step 4: Simplify right side
    20,722.39x = 515,639,055.97
  5. Step 5: Solve for x
    x = 515,639,055.97/20,722.39
  6. Step 6: Final answer
    x = 24,883.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.