Home / 18,883.48-28,334.74-13,372.24

Finding the Fourth Proportional to 18,883.48, 28,334.74 and 13,372.24

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Solution

The fourth proportional to 18,883.48, 28,334.74 and 13,372.24 is: 20,065.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,883.48 : 28,334.74 = 13,372.24 : x
  2. Step 2: Convert to fraction form
    18,883.48/28,334.74 = 13,372.24/x
  3. Step 3: Cross multiply
    18,883.48x = 28,334.74 × 13,372.24
  4. Step 4: Simplify right side
    18,883.48x = 378,898,943.62
  5. Step 5: Solve for x
    x = 378,898,943.62/18,883.48
  6. Step 6: Final answer
    x = 20,065.10

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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.