Home / 27,682.05-38,201.04-15,106.80

Finding the Fourth Proportional to 27,682.05, 38,201.04 and 15,106.80

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Solution

The fourth proportional to 27,682.05, 38,201.04 and 15,106.80 is: 20,847.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,682.05 : 38,201.04 = 15,106.80 : x
  2. Step 2: Convert to fraction form
    27,682.05/38,201.04 = 15,106.80/x
  3. Step 3: Cross multiply
    27,682.05x = 38,201.04 × 15,106.80
  4. Step 4: Simplify right side
    27,682.05x = 577,095,471.07
  5. Step 5: Solve for x
    x = 577,095,471.07/27,682.05
  6. Step 6: Final answer
    x = 20,847.28

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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.