Home / 28,629.94-42,957.15-14,788.66

Finding the Fourth Proportional to 28,629.94, 42,957.15 and 14,788.66

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Solution

The fourth proportional to 28,629.94, 42,957.15 and 14,788.66 is: 22,189.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,629.94 : 42,957.15 = 14,788.66 : x
  2. Step 2: Convert to fraction form
    28,629.94/42,957.15 = 14,788.66/x
  3. Step 3: Cross multiply
    28,629.94x = 42,957.15 × 14,788.66
  4. Step 4: Simplify right side
    28,629.94x = 635,278,685.92
  5. Step 5: Solve for x
    x = 635,278,685.92/28,629.94
  6. Step 6: Final answer
    x = 22,189.31

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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.