Home / 20,037.93-27,664.92-12,870.73

Finding the Fourth Proportional to 20,037.93, 27,664.92 and 12,870.73

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Solution

The fourth proportional to 20,037.93, 27,664.92 and 12,870.73 is: 17,769.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,037.93 : 27,664.92 = 12,870.73 : x
  2. Step 2: Convert to fraction form
    20,037.93/27,664.92 = 12,870.73/x
  3. Step 3: Cross multiply
    20,037.93x = 27,664.92 × 12,870.73
  4. Step 4: Simplify right side
    20,037.93x = 356,067,715.79
  5. Step 5: Solve for x
    x = 356,067,715.79/20,037.93
  6. Step 6: Final answer
    x = 17,769.69

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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.