Home / 18,820.08-28,234.74-13,284.24

Finding the Fourth Proportional to 18,820.08, 28,234.74 and 13,284.24

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Solution

The fourth proportional to 18,820.08, 28,234.74 and 13,284.24 is: 19,929.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,820.08 : 28,234.74 = 13,284.24 : x
  2. Step 2: Convert to fraction form
    18,820.08/28,234.74 = 13,284.24/x
  3. Step 3: Cross multiply
    18,820.08x = 28,234.74 × 13,284.24
  4. Step 4: Simplify right side
    18,820.08x = 375,077,006.43
  5. Step 5: Solve for x
    x = 375,077,006.43/18,820.08
  6. Step 6: Final answer
    x = 19,929.62

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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.