Home / 27,629.46-38,128.77-15,054.21

Finding the Fourth Proportional to 27,629.46, 38,128.77 and 15,054.21

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Solution

The fourth proportional to 27,629.46, 38,128.77 and 15,054.21 is: 20,774.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,629.46 : 38,128.77 = 15,054.21 : x
  2. Step 2: Convert to fraction form
    27,629.46/38,128.77 = 15,054.21/x
  3. Step 3: Cross multiply
    27,629.46x = 38,128.77 × 15,054.21
  4. Step 4: Simplify right side
    27,629.46x = 573,998,510.62
  5. Step 5: Solve for x
    x = 573,998,510.62/27,629.46
  6. Step 6: Final answer
    x = 20,774.87

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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.