Home / 20,758.32-28,637.22-12,797.64

Finding the Fourth Proportional to 20,758.32, 28,637.22 and 12,797.64

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Solution

The fourth proportional to 20,758.32, 28,637.22 and 12,797.64 is: 17,655.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,758.32 : 28,637.22 = 12,797.64 : x
  2. Step 2: Convert to fraction form
    20,758.32/28,637.22 = 12,797.64/x
  3. Step 3: Cross multiply
    20,758.32x = 28,637.22 × 12,797.64
  4. Step 4: Simplify right side
    20,758.32x = 366,488,832.16
  5. Step 5: Solve for x
    x = 366,488,832.16/20,758.32
  6. Step 6: Final answer
    x = 17,655.03

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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.