Home / 18,003.12-24,712.14-15,969.24

Finding the Fourth Proportional to 18,003.12, 24,712.14 and 15,969.24

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Solution

The fourth proportional to 18,003.12, 24,712.14 and 15,969.24 is: 21,920.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,003.12 : 24,712.14 = 15,969.24 : x
  2. Step 2: Convert to fraction form
    18,003.12/24,712.14 = 15,969.24/x
  3. Step 3: Cross multiply
    18,003.12x = 24,712.14 × 15,969.24
  4. Step 4: Simplify right side
    18,003.12x = 394,634,094.57
  5. Step 5: Solve for x
    x = 394,634,094.57/18,003.12
  6. Step 6: Final answer
    x = 21,920.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.