Home / 19,865.97-27,415.80-10,914.30

Finding the Fourth Proportional to 19,865.97, 27,415.80 and 10,914.30

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Solution

The fourth proportional to 19,865.97, 27,415.80 and 10,914.30 is: 15,062.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,865.97 : 27,415.80 = 10,914.30 : x
  2. Step 2: Convert to fraction form
    19,865.97/27,415.80 = 10,914.30/x
  3. Step 3: Cross multiply
    19,865.97x = 27,415.80 × 10,914.30
  4. Step 4: Simplify right side
    19,865.97x = 299,224,265.94
  5. Step 5: Solve for x
    x = 299,224,265.94/19,865.97
  6. Step 6: Final answer
    x = 15,062.15

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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.