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Finding the Fourth Proportional to 26,957, 37,200.66 and 15,779

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Solution

The fourth proportional to 26,957, 37,200.66 and 15,779 is: 21,775.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,957 : 37,200.66 = 15,779 : x
  2. Step 2: Convert to fraction form
    26,957/37,200.66 = 15,779/x
  3. Step 3: Cross multiply
    26,957x = 37,200.66 × 15,779
  4. Step 4: Simplify right side
    26,957x = 586,989,214.14
  5. Step 5: Solve for x
    x = 586,989,214.14/26,957
  6. Step 6: Final answer
    x = 21,775.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.