Home / 19,865.80-27,415.14-10,914.28

Finding the Fourth Proportional to 19,865.80, 27,415.14 and 10,914.28

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Solution

The fourth proportional to 19,865.80, 27,415.14 and 10,914.28 is: 15,061.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,865.80 : 27,415.14 = 10,914.28 : x
  2. Step 2: Convert to fraction form
    19,865.80/27,415.14 = 10,914.28/x
  3. Step 3: Cross multiply
    19,865.80x = 27,415.14 × 10,914.28
  4. Step 4: Simplify right side
    19,865.80x = 299,216,514.20
  5. Step 5: Solve for x
    x = 299,216,514.20/19,865.80
  6. Step 6: Final answer
    x = 15,061.89

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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.