Home / 27,815.20-38,384.72-15,068.09

Finding the Fourth Proportional to 27,815.20, 38,384.72 and 15,068.09

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Solution

The fourth proportional to 27,815.20, 38,384.72 and 15,068.09 is: 20,793.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,815.20 : 38,384.72 = 15,068.09 : x
  2. Step 2: Convert to fraction form
    27,815.20/38,384.72 = 15,068.09/x
  3. Step 3: Cross multiply
    27,815.20x = 38,384.72 × 15,068.09
  4. Step 4: Simplify right side
    27,815.20x = 578,384,453.26
  5. Step 5: Solve for x
    x = 578,384,453.26/27,815.20
  6. Step 6: Final answer
    x = 20,793.83

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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.