Home / 18,961.29-28,443.33-5,811.93

Finding the Fourth Proportional to 18,961.29, 28,443.33 and 5,811.93

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Solution

The fourth proportional to 18,961.29, 28,443.33 and 5,811.93 is: 8,718.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,961.29 : 28,443.33 = 5,811.93 : x
  2. Step 2: Convert to fraction form
    18,961.29/28,443.33 = 5,811.93/x
  3. Step 3: Cross multiply
    18,961.29x = 28,443.33 × 5,811.93
  4. Step 4: Simplify right side
    18,961.29x = 165,310,642.93
  5. Step 5: Solve for x
    x = 165,310,642.93/18,961.29
  6. Step 6: Final answer
    x = 8,718.32

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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.