Home / 19,979.76-27,546.40-16,381.48

Finding the Fourth Proportional to 19,979.76, 27,546.40 and 16,381.48

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Solution

The fourth proportional to 19,979.76, 27,546.40 and 16,381.48 is: 22,585.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,979.76 : 27,546.40 = 16,381.48 : x
  2. Step 2: Convert to fraction form
    19,979.76/27,546.40 = 16,381.48/x
  3. Step 3: Cross multiply
    19,979.76x = 27,546.40 × 16,381.48
  4. Step 4: Simplify right side
    19,979.76x = 451,250,800.67
  5. Step 5: Solve for x
    x = 451,250,800.67/19,979.76
  6. Step 6: Final answer
    x = 22,585.40

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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.