Home / 27,653.92-38,162.32-15,078.68

Finding the Fourth Proportional to 27,653.92, 38,162.32 and 15,078.68

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Solution

The fourth proportional to 27,653.92, 38,162.32 and 15,078.68 is: 20,808.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,653.92 : 38,162.32 = 15,078.68 : x
  2. Step 2: Convert to fraction form
    27,653.92/38,162.32 = 15,078.68/x
  3. Step 3: Cross multiply
    27,653.92x = 38,162.32 × 15,078.68
  4. Step 4: Simplify right side
    27,653.92x = 575,437,411.34
  5. Step 5: Solve for x
    x = 575,437,411.34/27,653.92
  6. Step 6: Final answer
    x = 20,808.53

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Half scale
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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.