Home / 20,285.17-27,992.53-11,330.89

Finding the Fourth Proportional to 20,285.17, 27,992.53 and 11,330.89

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Solution

The fourth proportional to 20,285.17, 27,992.53 and 11,330.89 is: 15,636.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,285.17 : 27,992.53 = 11,330.89 : x
  2. Step 2: Convert to fraction form
    20,285.17/27,992.53 = 11,330.89/x
  3. Step 3: Cross multiply
    20,285.17x = 27,992.53 × 11,330.89
  4. Step 4: Simplify right side
    20,285.17x = 317,180,278.25
  5. Step 5: Solve for x
    x = 317,180,278.25/20,285.17
  6. Step 6: Final answer
    x = 15,636.07

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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.