Home / 30,687.62-46,021.68-13,152.74

Finding the Fourth Proportional to 30,687.62, 46,021.68 and 13,152.74

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Solution

The fourth proportional to 30,687.62, 46,021.68 and 13,152.74 is: 19,724.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,687.62 : 46,021.68 = 13,152.74 : x
  2. Step 2: Convert to fraction form
    30,687.62/46,021.68 = 13,152.74/x
  3. Step 3: Cross multiply
    30,687.62x = 46,021.68 × 13,152.74
  4. Step 4: Simplify right side
    30,687.62x = 605,311,191.40
  5. Step 5: Solve for x
    x = 605,311,191.40/30,687.62
  6. Step 6: Final answer
    x = 19,724.93

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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.