Home / 27,705.92-38,234.32-15,130.68

Finding the Fourth Proportional to 27,705.92, 38,234.32 and 15,130.68

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Solution

The fourth proportional to 27,705.92, 38,234.32 and 15,130.68 is: 20,880.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,705.92 : 38,234.32 = 15,130.68 : x
  2. Step 2: Convert to fraction form
    27,705.92/38,234.32 = 15,130.68/x
  3. Step 3: Cross multiply
    27,705.92x = 38,234.32 × 15,130.68
  4. Step 4: Simplify right side
    27,705.92x = 578,511,260.94
  5. Step 5: Solve for x
    x = 578,511,260.94/27,705.92
  6. Step 6: Final answer
    x = 20,880.42

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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.