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Finding the Fourth Proportional to 28,826, 43,239.36 and 10,358

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Solution

The fourth proportional to 28,826, 43,239.36 and 10,358 is: 15,537.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,826 : 43,239.36 = 10,358 : x
  2. Step 2: Convert to fraction form
    28,826/43,239.36 = 10,358/x
  3. Step 3: Cross multiply
    28,826x = 43,239.36 × 10,358
  4. Step 4: Simplify right side
    28,826x = 447,873,290.88
  5. Step 5: Solve for x
    x = 447,873,290.88/28,826
  6. Step 6: Final answer
    x = 15,537.13

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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.