Home / 20,068.70-27,694.80-11,116.78

Finding the Fourth Proportional to 20,068.70, 27,694.80 and 11,116.78

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Solution

The fourth proportional to 20,068.70, 27,694.80 and 11,116.78 is: 15,341.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,068.70 : 27,694.80 = 11,116.78 : x
  2. Step 2: Convert to fraction form
    20,068.70/27,694.80 = 11,116.78/x
  3. Step 3: Cross multiply
    20,068.70x = 27,694.80 × 11,116.78
  4. Step 4: Simplify right side
    20,068.70x = 307,877,101.06
  5. Step 5: Solve for x
    x = 307,877,101.06/20,068.70
  6. Step 6: Final answer
    x = 15,341.16

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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.