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Finding the Fourth Proportional to 27,358.89, 37,753 and 15,425.16

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Solution

The fourth proportional to 27,358.89, 37,753 and 15,425.16 is: 21,285.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,358.89 : 37,753 = 15,425.16 : x
  2. Step 2: Convert to fraction form
    27,358.89/37,753 = 15,425.16/x
  3. Step 3: Cross multiply
    27,358.89x = 37,753 × 15,425.16
  4. Step 4: Simplify right side
    27,358.89x = 582,346,065.48
  5. Step 5: Solve for x
    x = 582,346,065.48/27,358.89
  6. Step 6: Final answer
    x = 21,285.44

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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.