Home / 30,719.20-46,067.28-13,180

Finding the Fourth Proportional to 30,719.20, 46,067.28 and 13,180

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Solution

The fourth proportional to 30,719.20, 46,067.28 and 13,180 is: 19,765.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,719.20 : 46,067.28 = 13,180 : x
  2. Step 2: Convert to fraction form
    30,719.20/46,067.28 = 13,180/x
  3. Step 3: Cross multiply
    30,719.20x = 46,067.28 × 13,180
  4. Step 4: Simplify right side
    30,719.20x = 607,166,750.40
  5. Step 5: Solve for x
    x = 607,166,750.40/30,719.20
  6. Step 6: Final answer
    x = 19,765.06

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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.