Home / 20,068.57-27,694.47-11,116.63

Finding the Fourth Proportional to 20,068.57, 27,694.47 and 11,116.63

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Solution

The fourth proportional to 20,068.57, 27,694.47 and 11,116.63 is: 15,340.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,068.57 : 27,694.47 = 11,116.63 : x
  2. Step 2: Convert to fraction form
    20,068.57/27,694.47 = 11,116.63/x
  3. Step 3: Cross multiply
    20,068.57x = 27,694.47 × 11,116.63
  4. Step 4: Simplify right side
    20,068.57x = 307,869,176.04
  5. Step 5: Solve for x
    x = 307,869,176.04/20,068.57
  6. Step 6: Final answer
    x = 15,340.86

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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.