Home / 18,192.77-27,289.06-15,720.02

Finding the Fourth Proportional to 18,192.77, 27,289.06 and 15,720.02

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Solution

The fourth proportional to 18,192.77, 27,289.06 and 15,720.02 is: 23,579.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,192.77 : 27,289.06 = 15,720.02 : x
  2. Step 2: Convert to fraction form
    18,192.77/27,289.06 = 15,720.02/x
  3. Step 3: Cross multiply
    18,192.77x = 27,289.06 × 15,720.02
  4. Step 4: Simplify right side
    18,192.77x = 428,984,568.98
  5. Step 5: Solve for x
    x = 428,984,568.98/18,192.77
  6. Step 6: Final answer
    x = 23,579.95

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1.5x scale

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.