Home / 25,720.35-38,583.36-8,186.07

Finding the Fourth Proportional to 25,720.35, 38,583.36 and 8,186.07

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Solution

The fourth proportional to 25,720.35, 38,583.36 and 8,186.07 is: 12,280.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,720.35 : 38,583.36 = 8,186.07 : x
  2. Step 2: Convert to fraction form
    25,720.35/38,583.36 = 8,186.07/x
  3. Step 3: Cross multiply
    25,720.35x = 38,583.36 × 8,186.07
  4. Step 4: Simplify right side
    25,720.35x = 315,846,085.80
  5. Step 5: Solve for x
    x = 315,846,085.80/25,720.35
  6. Step 6: Final answer
    x = 12,280.01

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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.