Home / 27,830.91-38,406.56-15,084.41

Finding the Fourth Proportional to 27,830.91, 38,406.56 and 15,084.41

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Solution

The fourth proportional to 27,830.91, 38,406.56 and 15,084.41 is: 20,816.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,830.91 : 38,406.56 = 15,084.41 : x
  2. Step 2: Convert to fraction form
    27,830.91/38,406.56 = 15,084.41/x
  3. Step 3: Cross multiply
    27,830.91x = 38,406.56 × 15,084.41
  4. Step 4: Simplify right side
    27,830.91x = 579,340,297.73
  5. Step 5: Solve for x
    x = 579,340,297.73/27,830.91
  6. Step 6: Final answer
    x = 20,816.43

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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.