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Finding the Fourth Proportional to 27,272, 37,628.88 and 15,332.96

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Solution

The fourth proportional to 27,272, 37,628.88 and 15,332.96 is: 21,155.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,272 : 37,628.88 = 15,332.96 : x
  2. Step 2: Convert to fraction form
    27,272/37,628.88 = 15,332.96/x
  3. Step 3: Cross multiply
    27,272x = 37,628.88 × 15,332.96
  4. Step 4: Simplify right side
    27,272x = 576,962,111.88
  5. Step 5: Solve for x
    x = 576,962,111.88/27,272
  6. Step 6: Final answer
    x = 21,155.84

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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.