Home / 18,429.68-27,603.99-15,230.86

Finding the Fourth Proportional to 18,429.68, 27,603.99 and 15,230.86

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Solution

The fourth proportional to 18,429.68, 27,603.99 and 15,230.86 is: 22,812.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,429.68 : 27,603.99 = 15,230.86 : x
  2. Step 2: Convert to fraction form
    18,429.68/27,603.99 = 15,230.86/x
  3. Step 3: Cross multiply
    18,429.68x = 27,603.99 × 15,230.86
  4. Step 4: Simplify right side
    18,429.68x = 420,432,507.13
  5. Step 5: Solve for x
    x = 420,432,507.13/18,429.68
  6. Step 6: Final answer
    x = 22,812.80

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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.