Home / 20,068.52-27,696.12-11,116.88

Finding the Fourth Proportional to 20,068.52, 27,696.12 and 11,116.88

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Solution

The fourth proportional to 20,068.52, 27,696.12 and 11,116.88 is: 15,342.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,068.52 : 27,696.12 = 11,116.88 : x
  2. Step 2: Convert to fraction form
    20,068.52/27,696.12 = 11,116.88/x
  3. Step 3: Cross multiply
    20,068.52x = 27,696.12 × 11,116.88
  4. Step 4: Simplify right side
    20,068.52x = 307,894,304.03
  5. Step 5: Solve for x
    x = 307,894,304.03/20,068.52
  6. Step 6: Final answer
    x = 15,342.15

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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.