Home / 19,806.21-29,709.38-5,015.12

Finding the Fourth Proportional to 19,806.21, 29,709.38 and 5,015.12

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Solution

The fourth proportional to 19,806.21, 29,709.38 and 5,015.12 is: 7,522.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,806.21 : 29,709.38 = 5,015.12 : x
  2. Step 2: Convert to fraction form
    19,806.21/29,709.38 = 5,015.12/x
  3. Step 3: Cross multiply
    19,806.21x = 29,709.38 × 5,015.12
  4. Step 4: Simplify right side
    19,806.21x = 148,996,067.12
  5. Step 5: Solve for x
    x = 148,996,067.12/19,806.21
  6. Step 6: Final answer
    x = 7,522.70

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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.