Home / 27,339.20-37,731.68-15,404.88

Finding the Fourth Proportional to 27,339.20, 37,731.68 and 15,404.88

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Solution

The fourth proportional to 27,339.20, 37,731.68 and 15,404.88 is: 21,260.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,339.20 : 37,731.68 = 15,404.88 : x
  2. Step 2: Convert to fraction form
    27,339.20/37,731.68 = 15,404.88/x
  3. Step 3: Cross multiply
    27,339.20x = 37,731.68 × 15,404.88
  4. Step 4: Simplify right side
    27,339.20x = 581,252,002.60
  5. Step 5: Solve for x
    x = 581,252,002.60/27,339.20
  6. Step 6: Final answer
    x = 21,260.75

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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.