Home / 20,133.63-27,797.85-12,590.64

Finding the Fourth Proportional to 20,133.63, 27,797.85 and 12,590.64

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Solution

The fourth proportional to 20,133.63, 27,797.85 and 12,590.64 is: 17,383.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.63 : 27,797.85 = 12,590.64 : x
  2. Step 2: Convert to fraction form
    20,133.63/27,797.85 = 12,590.64/x
  3. Step 3: Cross multiply
    20,133.63x = 27,797.85 × 12,590.64
  4. Step 4: Simplify right side
    20,133.63x = 349,992,722.12
  5. Step 5: Solve for x
    x = 349,992,722.12/20,133.63
  6. Step 6: Final answer
    x = 17,383.49

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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.