Home / 18,820.01-28,234.76-13,284.16

Finding the Fourth Proportional to 18,820.01, 28,234.76 and 13,284.16

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Solution

The fourth proportional to 18,820.01, 28,234.76 and 13,284.16 is: 19,929.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,820.01 : 28,234.76 = 13,284.16 : x
  2. Step 2: Convert to fraction form
    18,820.01/28,234.76 = 13,284.16/x
  3. Step 3: Cross multiply
    18,820.01x = 28,234.76 × 13,284.16
  4. Step 4: Simplify right side
    18,820.01x = 375,074,932.39
  5. Step 5: Solve for x
    x = 375,074,932.39/18,820.01
  6. Step 6: Final answer
    x = 19,929.58

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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.