Home / 20,050.83-27,660.96-12,979.53

Finding the Fourth Proportional to 20,050.83, 27,660.96 and 12,979.53

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Solution

The fourth proportional to 20,050.83, 27,660.96 and 12,979.53 is: 17,905.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,050.83 : 27,660.96 = 12,979.53 : x
  2. Step 2: Convert to fraction form
    20,050.83/27,660.96 = 12,979.53/x
  3. Step 3: Cross multiply
    20,050.83x = 27,660.96 × 12,979.53
  4. Step 4: Simplify right side
    20,050.83x = 359,026,260.15
  5. Step 5: Solve for x
    x = 359,026,260.15/20,050.83
  6. Step 6: Final answer
    x = 17,905.81

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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.