Home / 27,538.36-38,018.68-18,134.26

Finding the Fourth Proportional to 27,538.36, 38,018.68 and 18,134.26

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Solution

The fourth proportional to 27,538.36, 38,018.68 and 18,134.26 is: 25,035.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,538.36 : 38,018.68 = 18,134.26 : x
  2. Step 2: Convert to fraction form
    27,538.36/38,018.68 = 18,134.26/x
  3. Step 3: Cross multiply
    27,538.36x = 38,018.68 × 18,134.26
  4. Step 4: Simplify right side
    27,538.36x = 689,440,627.98
  5. Step 5: Solve for x
    x = 689,440,627.98/27,538.36
  6. Step 6: Final answer
    x = 25,035.65

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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.