Home / 25,811.26-38,670.62-15,811.00

Finding the Fourth Proportional to 25,811.26, 38,670.62 and 15,811.00

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Solution

The fourth proportional to 25,811.26, 38,670.62 and 15,811.00 is: 23,688.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,811.26 : 38,670.62 = 15,811.00 : x
  2. Step 2: Convert to fraction form
    25,811.26/38,670.62 = 15,811.00/x
  3. Step 3: Cross multiply
    25,811.26x = 38,670.62 × 15,811.00
  4. Step 4: Simplify right side
    25,811.26x = 611,420,997.09
  5. Step 5: Solve for x
    x = 611,420,997.09/25,811.26
  6. Step 6: Final answer
    x = 23,688.15

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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.