Home / 28,462.88-42,665.15-11,832.57

Finding the Fourth Proportional to 28,462.88, 42,665.15 and 11,832.57

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Solution

The fourth proportional to 28,462.88, 42,665.15 and 11,832.57 is: 17,736.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,462.88 : 42,665.15 = 11,832.57 : x
  2. Step 2: Convert to fraction form
    28,462.88/42,665.15 = 11,832.57/x
  3. Step 3: Cross multiply
    28,462.88x = 42,665.15 × 11,832.57
  4. Step 4: Simplify right side
    28,462.88x = 504,838,160.61
  5. Step 5: Solve for x
    x = 504,838,160.61/28,462.88
  6. Step 6: Final answer
    x = 17,736.72

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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.