Home / 20,079.06-27,690.57-12,997.50

Finding the Fourth Proportional to 20,079.06, 27,690.57 and 12,997.50

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Solution

The fourth proportional to 20,079.06, 27,690.57 and 12,997.50 is: 17,924.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079.06 : 27,690.57 = 12,997.50 : x
  2. Step 2: Convert to fraction form
    20,079.06/27,690.57 = 12,997.50/x
  3. Step 3: Cross multiply
    20,079.06x = 27,690.57 × 12,997.50
  4. Step 4: Simplify right side
    20,079.06x = 359,908,183.58
  5. Step 5: Solve for x
    x = 359,908,183.58/20,079.06
  6. Step 6: Final answer
    x = 17,924.55

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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.