Home / 21,073.08-29,087.52-13,110.60

Finding the Fourth Proportional to 21,073.08, 29,087.52 and 13,110.60

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Solution

The fourth proportional to 21,073.08, 29,087.52 and 13,110.60 is: 18,096.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,073.08 : 29,087.52 = 13,110.60 : x
  2. Step 2: Convert to fraction form
    21,073.08/29,087.52 = 13,110.60/x
  3. Step 3: Cross multiply
    21,073.08x = 29,087.52 × 13,110.60
  4. Step 4: Simplify right side
    21,073.08x = 381,354,839.71
  5. Step 5: Solve for x
    x = 381,354,839.71/21,073.08
  6. Step 6: Final answer
    x = 18,096.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.