Home / 20,097.82-30,140.56-13,897.68

Finding the Fourth Proportional to 20,097.82, 30,140.56 and 13,897.68

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Solution

The fourth proportional to 20,097.82, 30,140.56 and 13,897.68 is: 20,842.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,097.82 : 30,140.56 = 13,897.68 : x
  2. Step 2: Convert to fraction form
    20,097.82/30,140.56 = 13,897.68/x
  3. Step 3: Cross multiply
    20,097.82x = 30,140.56 × 13,897.68
  4. Step 4: Simplify right side
    20,097.82x = 418,883,857.90
  5. Step 5: Solve for x
    x = 418,883,857.90/20,097.82
  6. Step 6: Final answer
    x = 20,842.25

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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.