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Finding the Fourth Proportional to 18,239.34, 27,359.58 and 5,759.48

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Solution

The fourth proportional to 18,239.34, 27,359.58 and 5,759.48 is: 8,639.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,239.34 : 27,359.58 = 5,759.48 : x
  2. Step 2: Convert to fraction form
    18,239.34/27,359.58 = 5,759.48/x
  3. Step 3: Cross multiply
    18,239.34x = 27,359.58 × 5,759.48
  4. Step 4: Simplify right side
    18,239.34x = 157,576,953.82
  5. Step 5: Solve for x
    x = 157,576,953.82/18,239.34
  6. Step 6: Final answer
    x = 8,639.40

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1.5x scale

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.