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Finding the Fourth Proportional to 28,710.92, 43,068.78 and 10,937

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Solution

The fourth proportional to 28,710.92, 43,068.78 and 10,937 is: 16,406.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,710.92 : 43,068.78 = 10,937 : x
  2. Step 2: Convert to fraction form
    28,710.92/43,068.78 = 10,937/x
  3. Step 3: Cross multiply
    28,710.92x = 43,068.78 × 10,937
  4. Step 4: Simplify right side
    28,710.92x = 471,043,246.86
  5. Step 5: Solve for x
    x = 471,043,246.86/28,710.92
  6. Step 6: Final answer
    x = 16,406.41

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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.