Home / 25,983.56-38,981.10-12,125

Finding the Fourth Proportional to 25,983.56, 38,981.10 and 12,125

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Solution

The fourth proportional to 25,983.56, 38,981.10 and 12,125 is: 18,190.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,983.56 : 38,981.10 = 12,125 : x
  2. Step 2: Convert to fraction form
    25,983.56/38,981.10 = 12,125/x
  3. Step 3: Cross multiply
    25,983.56x = 38,981.10 × 12,125
  4. Step 4: Simplify right side
    25,983.56x = 472,645,837.50
  5. Step 5: Solve for x
    x = 472,645,837.50/25,983.56
  6. Step 6: Final answer
    x = 18,190.19

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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.