Home / 18,385.07-27,492.84-13,650.21

Finding the Fourth Proportional to 18,385.07, 27,492.84 and 13,650.21

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Solution

The fourth proportional to 18,385.07, 27,492.84 and 13,650.21 is: 20,412.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,385.07 : 27,492.84 = 13,650.21 : x
  2. Step 2: Convert to fraction form
    18,385.07/27,492.84 = 13,650.21/x
  3. Step 3: Cross multiply
    18,385.07x = 27,492.84 × 13,650.21
  4. Step 4: Simplify right side
    18,385.07x = 375,283,039.50
  5. Step 5: Solve for x
    x = 375,283,039.50/18,385.07
  6. Step 6: Final answer
    x = 20,412.39

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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.