Home / 28,838.43-43,265.34-9,117.36

Finding the Fourth Proportional to 28,838.43, 43,265.34 and 9,117.36

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Solution

The fourth proportional to 28,838.43, 43,265.34 and 9,117.36 is: 13,678.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,838.43 : 43,265.34 = 9,117.36 : x
  2. Step 2: Convert to fraction form
    28,838.43/43,265.34 = 9,117.36/x
  3. Step 3: Cross multiply
    28,838.43x = 43,265.34 × 9,117.36
  4. Step 4: Simplify right side
    28,838.43x = 394,465,680.30
  5. Step 5: Solve for x
    x = 394,465,680.30/28,838.43
  6. Step 6: Final answer
    x = 13,678.47

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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.