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Finding the Fourth Proportional to 28,838.40, 43,260.48 and 10,368

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Solution

The fourth proportional to 28,838.40, 43,260.48 and 10,368 is: 15,553.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,838.40 : 43,260.48 = 10,368 : x
  2. Step 2: Convert to fraction form
    28,838.40/43,260.48 = 10,368/x
  3. Step 3: Cross multiply
    28,838.40x = 43,260.48 × 10,368
  4. Step 4: Simplify right side
    28,838.40x = 448,524,656.64
  5. Step 5: Solve for x
    x = 448,524,656.64/28,838.40
  6. Step 6: Final answer
    x = 15,553.04

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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.