Home / 20,170.59-27,763.79-14,783.55

Finding the Fourth Proportional to 20,170.59, 27,763.79 and 14,783.55

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Solution

The fourth proportional to 20,170.59, 27,763.79 and 14,783.55 is: 20,348.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,170.59 : 27,763.79 = 14,783.55 : x
  2. Step 2: Convert to fraction form
    20,170.59/27,763.79 = 14,783.55/x
  3. Step 3: Cross multiply
    20,170.59x = 27,763.79 × 14,783.55
  4. Step 4: Simplify right side
    20,170.59x = 410,447,377.65
  5. Step 5: Solve for x
    x = 410,447,377.65/20,170.59
  6. Step 6: Final answer
    x = 20,348.80

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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.