Home / 19,805.46-27,336.33-12,730.92

Finding the Fourth Proportional to 19,805.46, 27,336.33 and 12,730.92

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Solution

The fourth proportional to 19,805.46, 27,336.33 and 12,730.92 is: 17,571.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,805.46 : 27,336.33 = 12,730.92 : x
  2. Step 2: Convert to fraction form
    19,805.46/27,336.33 = 12,730.92/x
  3. Step 3: Cross multiply
    19,805.46x = 27,336.33 × 12,730.92
  4. Step 4: Simplify right side
    19,805.46x = 348,016,630.32
  5. Step 5: Solve for x
    x = 348,016,630.32/19,805.46
  6. Step 6: Final answer
    x = 17,571.75

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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.