Home / 27,579.40-38,043.54-20,016.96

Finding the Fourth Proportional to 27,579.40, 38,043.54 and 20,016.96

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Solution

The fourth proportional to 27,579.40, 38,043.54 and 20,016.96 is: 27,611.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,579.40 : 38,043.54 = 20,016.96 : x
  2. Step 2: Convert to fraction form
    27,579.40/38,043.54 = 20,016.96/x
  3. Step 3: Cross multiply
    27,579.40x = 38,043.54 × 20,016.96
  4. Step 4: Simplify right side
    27,579.40x = 761,516,018.44
  5. Step 5: Solve for x
    x = 761,516,018.44/27,579.40
  6. Step 6: Final answer
    x = 27,611.77

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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.