Home / 20,166.52-27,830.28-11,214.40

Finding the Fourth Proportional to 20,166.52, 27,830.28 and 11,214.40

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Solution

The fourth proportional to 20,166.52, 27,830.28 and 11,214.40 is: 15,476.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.52 : 27,830.28 = 11,214.40 : x
  2. Step 2: Convert to fraction form
    20,166.52/27,830.28 = 11,214.40/x
  3. Step 3: Cross multiply
    20,166.52x = 27,830.28 × 11,214.40
  4. Step 4: Simplify right side
    20,166.52x = 312,099,892.03
  5. Step 5: Solve for x
    x = 312,099,892.03/20,166.52
  6. Step 6: Final answer
    x = 15,476.14

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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.