Home / 27,709.38-38,234.52-15,772.95

Finding the Fourth Proportional to 27,709.38, 38,234.52 and 15,772.95

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Solution

The fourth proportional to 27,709.38, 38,234.52 and 15,772.95 is: 21,764.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,709.38 : 38,234.52 = 15,772.95 : x
  2. Step 2: Convert to fraction form
    27,709.38/38,234.52 = 15,772.95/x
  3. Step 3: Cross multiply
    27,709.38x = 38,234.52 × 15,772.95
  4. Step 4: Simplify right side
    27,709.38x = 603,071,172.23
  5. Step 5: Solve for x
    x = 603,071,172.23/27,709.38
  6. Step 6: Final answer
    x = 21,764.15

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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.