Home / 21,073.57-29,081.50-11,642.11

Finding the Fourth Proportional to 21,073.57, 29,081.50 and 11,642.11

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Solution

The fourth proportional to 21,073.57, 29,081.50 and 11,642.11 is: 16,066.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,073.57 : 29,081.50 = 11,642.11 : x
  2. Step 2: Convert to fraction form
    21,073.57/29,081.50 = 11,642.11/x
  3. Step 3: Cross multiply
    21,073.57x = 29,081.50 × 11,642.11
  4. Step 4: Simplify right side
    21,073.57x = 338,570,021.97
  5. Step 5: Solve for x
    x = 338,570,021.97/21,073.57
  6. Step 6: Final answer
    x = 16,066.10

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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.