Home / 27,865.58-38,454.49-15,929.18

Finding the Fourth Proportional to 27,865.58, 38,454.49 and 15,929.18

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Solution

The fourth proportional to 27,865.58, 38,454.49 and 15,929.18 is: 21,982.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,865.58 : 38,454.49 = 15,929.18 : x
  2. Step 2: Convert to fraction form
    27,865.58/38,454.49 = 15,929.18/x
  3. Step 3: Cross multiply
    27,865.58x = 38,454.49 × 15,929.18
  4. Step 4: Simplify right side
    27,865.58x = 612,548,464.86
  5. Step 5: Solve for x
    x = 612,548,464.86/27,865.58
  6. Step 6: Final answer
    x = 21,982.27

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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.