Home / 21,190.18-29,242.65-11,759.62

Finding the Fourth Proportional to 21,190.18, 29,242.65 and 11,759.62

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Solution

The fourth proportional to 21,190.18, 29,242.65 and 11,759.62 is: 16,228.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,190.18 : 29,242.65 = 11,759.62 : x
  2. Step 2: Convert to fraction form
    21,190.18/29,242.65 = 11,759.62/x
  3. Step 3: Cross multiply
    21,190.18x = 29,242.65 × 11,759.62
  4. Step 4: Simplify right side
    21,190.18x = 343,882,451.79
  5. Step 5: Solve for x
    x = 343,882,451.79/21,190.18
  6. Step 6: Final answer
    x = 16,228.39

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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.