Home / 20,154.24-30,102.36-15,999

Finding the Fourth Proportional to 20,154.24, 30,102.36 and 15,999

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Solution

The fourth proportional to 20,154.24, 30,102.36 and 15,999 is: 23,896.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154.24 : 30,102.36 = 15,999 : x
  2. Step 2: Convert to fraction form
    20,154.24/30,102.36 = 15,999/x
  3. Step 3: Cross multiply
    20,154.24x = 30,102.36 × 15,999
  4. Step 4: Simplify right side
    20,154.24x = 481,607,657.64
  5. Step 5: Solve for x
    x = 481,607,657.64/20,154.24
  6. Step 6: Final answer
    x = 23,896.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.