Home / 28,675.24-43,008-11,145.40

Finding the Fourth Proportional to 28,675.24, 43,008 and 11,145.40

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Solution

The fourth proportional to 28,675.24, 43,008 and 11,145.40 is: 16,716.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,675.24 : 43,008 = 11,145.40 : x
  2. Step 2: Convert to fraction form
    28,675.24/43,008 = 11,145.40/x
  3. Step 3: Cross multiply
    28,675.24x = 43,008 × 11,145.40
  4. Step 4: Simplify right side
    28,675.24x = 479,341,363.20
  5. Step 5: Solve for x
    x = 479,341,363.20/28,675.24
  6. Step 6: Final answer
    x = 16,716.21

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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.