Home / 18,824.88-28,242.08-13,289.04

Finding the Fourth Proportional to 18,824.88, 28,242.08 and 13,289.04

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Solution

The fourth proportional to 18,824.88, 28,242.08 and 13,289.04 is: 19,936.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,824.88 : 28,242.08 = 13,289.04 : x
  2. Step 2: Convert to fraction form
    18,824.88/28,242.08 = 13,289.04/x
  3. Step 3: Cross multiply
    18,824.88x = 28,242.08 × 13,289.04
  4. Step 4: Simplify right side
    18,824.88x = 375,310,130.80
  5. Step 5: Solve for x
    x = 375,310,130.80/18,824.88
  6. Step 6: Final answer
    x = 19,936.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.