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Finding the Fourth Proportional to 27,469, 37,902.90 and 15,528.52

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Solution

The fourth proportional to 27,469, 37,902.90 and 15,528.52 is: 21,426.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,469 : 37,902.90 = 15,528.52 : x
  2. Step 2: Convert to fraction form
    27,469/37,902.90 = 15,528.52/x
  3. Step 3: Cross multiply
    27,469x = 37,902.90 × 15,528.52
  4. Step 4: Simplify right side
    27,469x = 588,575,940.71
  5. Step 5: Solve for x
    x = 588,575,940.71/27,469
  6. Step 6: Final answer
    x = 21,426.92

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1.5x scale

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.