Home / 28,187.87-42,251.24-14,113.97

Finding the Fourth Proportional to 28,187.87, 42,251.24 and 14,113.97

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Solution

The fourth proportional to 28,187.87, 42,251.24 and 14,113.97 is: 21,155.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,187.87 : 42,251.24 = 14,113.97 : x
  2. Step 2: Convert to fraction form
    28,187.87/42,251.24 = 14,113.97/x
  3. Step 3: Cross multiply
    28,187.87x = 42,251.24 × 14,113.97
  4. Step 4: Simplify right side
    28,187.87x = 596,332,795.51
  5. Step 5: Solve for x
    x = 596,332,795.51/28,187.87
  6. Step 6: Final answer
    x = 21,155.65

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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.