Home / 20,924.56-28,863.84-12,536.20

Finding the Fourth Proportional to 20,924.56, 28,863.84 and 12,536.20

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Solution

The fourth proportional to 20,924.56, 28,863.84 and 12,536.20 is: 17,292.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,924.56 : 28,863.84 = 12,536.20 : x
  2. Step 2: Convert to fraction form
    20,924.56/28,863.84 = 12,536.20/x
  3. Step 3: Cross multiply
    20,924.56x = 28,863.84 × 12,536.20
  4. Step 4: Simplify right side
    20,924.56x = 361,842,871.01
  5. Step 5: Solve for x
    x = 361,842,871.01/20,924.56
  6. Step 6: Final answer
    x = 17,292.73

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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.