Home / 15,720.15-23,580.23-5,331.99

Finding the Fourth Proportional to 15,720.15, 23,580.23 and 5,331.99

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Solution

The fourth proportional to 15,720.15, 23,580.23 and 5,331.99 is: 7,997.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,720.15 : 23,580.23 = 5,331.99 : x
  2. Step 2: Convert to fraction form
    15,720.15/23,580.23 = 5,331.99/x
  3. Step 3: Cross multiply
    15,720.15x = 23,580.23 × 5,331.99
  4. Step 4: Simplify right side
    15,720.15x = 125,729,523.90
  5. Step 5: Solve for x
    x = 125,729,523.90/15,720.15
  6. Step 6: Final answer
    x = 7,997.99

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.