Home / 19,015.29-28,529.74-8,484.38

Finding the Fourth Proportional to 19,015.29, 28,529.74 and 8,484.38

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Solution

The fourth proportional to 19,015.29, 28,529.74 and 8,484.38 is: 12,729.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,015.29 : 28,529.74 = 8,484.38 : x
  2. Step 2: Convert to fraction form
    19,015.29/28,529.74 = 8,484.38/x
  3. Step 3: Cross multiply
    19,015.29x = 28,529.74 × 8,484.38
  4. Step 4: Simplify right side
    19,015.29x = 242,057,155.46
  5. Step 5: Solve for x
    x = 242,057,155.46/19,015.29
  6. Step 6: Final answer
    x = 12,729.61

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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.