Home / 20,191.04-27,803.72-14,515.80

Finding the Fourth Proportional to 20,191.04, 27,803.72 and 14,515.80

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Solution

The fourth proportional to 20,191.04, 27,803.72 and 14,515.80 is: 19,988.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.04 : 27,803.72 = 14,515.80 : x
  2. Step 2: Convert to fraction form
    20,191.04/27,803.72 = 14,515.80/x
  3. Step 3: Cross multiply
    20,191.04x = 27,803.72 × 14,515.80
  4. Step 4: Simplify right side
    20,191.04x = 403,593,238.78
  5. Step 5: Solve for x
    x = 403,593,238.78/20,191.04
  6. Step 6: Final answer
    x = 19,988.73

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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.