Home / 21,770.16-30,042.68-11,834.16

Finding the Fourth Proportional to 21,770.16, 30,042.68 and 11,834.16

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Solution

The fourth proportional to 21,770.16, 30,042.68 and 11,834.16 is: 16,331.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,770.16 : 30,042.68 = 11,834.16 : x
  2. Step 2: Convert to fraction form
    21,770.16/30,042.68 = 11,834.16/x
  3. Step 3: Cross multiply
    21,770.16x = 30,042.68 × 11,834.16
  4. Step 4: Simplify right side
    21,770.16x = 355,529,881.95
  5. Step 5: Solve for x
    x = 355,529,881.95/21,770.16
  6. Step 6: Final answer
    x = 16,331.06

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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.