Home / 20,233.62-27,921.69-12,684.02

Finding the Fourth Proportional to 20,233.62, 27,921.69 and 12,684.02

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Solution

The fourth proportional to 20,233.62, 27,921.69 and 12,684.02 is: 17,503.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,233.62 : 27,921.69 = 12,684.02 : x
  2. Step 2: Convert to fraction form
    20,233.62/27,921.69 = 12,684.02/x
  3. Step 3: Cross multiply
    20,233.62x = 27,921.69 × 12,684.02
  4. Step 4: Simplify right side
    20,233.62x = 354,159,134.79
  5. Step 5: Solve for x
    x = 354,159,134.79/20,233.62
  6. Step 6: Final answer
    x = 17,503.50

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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.