Home / 20,133.28-27,797.54-12,590.97

Finding the Fourth Proportional to 20,133.28, 27,797.54 and 12,590.97

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Solution

The fourth proportional to 20,133.28, 27,797.54 and 12,590.97 is: 17,384.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.28 : 27,797.54 = 12,590.97 : x
  2. Step 2: Convert to fraction form
    20,133.28/27,797.54 = 12,590.97/x
  3. Step 3: Cross multiply
    20,133.28x = 27,797.54 × 12,590.97
  4. Step 4: Simplify right side
    20,133.28x = 349,997,992.21
  5. Step 5: Solve for x
    x = 349,997,992.21/20,133.28
  6. Step 6: Final answer
    x = 17,384.05

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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.