Home / 20,727.36-28,620.63-16,899.62

Finding the Fourth Proportional to 20,727.36, 28,620.63 and 16,899.62

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Solution

The fourth proportional to 20,727.36, 28,620.63 and 16,899.62 is: 23,335.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.36 : 28,620.63 = 16,899.62 : x
  2. Step 2: Convert to fraction form
    20,727.36/28,620.63 = 16,899.62/x
  3. Step 3: Cross multiply
    20,727.36x = 28,620.63 × 16,899.62
  4. Step 4: Simplify right side
    20,727.36x = 483,677,628.06
  5. Step 5: Solve for x
    x = 483,677,628.06/20,727.36
  6. Step 6: Final answer
    x = 23,335.23

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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.