Home / 19,330.18-28,946.04-12,736.38

Finding the Fourth Proportional to 19,330.18, 28,946.04 and 12,736.38

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Solution

The fourth proportional to 19,330.18, 28,946.04 and 12,736.38 is: 19,072.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,330.18 : 28,946.04 = 12,736.38 : x
  2. Step 2: Convert to fraction form
    19,330.18/28,946.04 = 12,736.38/x
  3. Step 3: Cross multiply
    19,330.18x = 28,946.04 × 12,736.38
  4. Step 4: Simplify right side
    19,330.18x = 368,667,764.94
  5. Step 5: Solve for x
    x = 368,667,764.94/19,330.18
  6. Step 6: Final answer
    x = 19,072.13

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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.