Home / 20,832.36-28,733.62-13,271.24

Finding the Fourth Proportional to 20,832.36, 28,733.62 and 13,271.24

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Solution

The fourth proportional to 20,832.36, 28,733.62 and 13,271.24 is: 18,304.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,832.36 : 28,733.62 = 13,271.24 : x
  2. Step 2: Convert to fraction form
    20,832.36/28,733.62 = 13,271.24/x
  3. Step 3: Cross multiply
    20,832.36x = 28,733.62 × 13,271.24
  4. Step 4: Simplify right side
    20,832.36x = 381,330,767.09
  5. Step 5: Solve for x
    x = 381,330,767.09/20,832.36
  6. Step 6: Final answer
    x = 18,304.73

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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.