Home / 21,770.96-30,048.39-12,341.34

Finding the Fourth Proportional to 21,770.96, 30,048.39 and 12,341.34

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Solution

The fourth proportional to 21,770.96, 30,048.39 and 12,341.34 is: 17,033.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,770.96 : 30,048.39 = 12,341.34 : x
  2. Step 2: Convert to fraction form
    21,770.96/30,048.39 = 12,341.34/x
  3. Step 3: Cross multiply
    21,770.96x = 30,048.39 × 12,341.34
  4. Step 4: Simplify right side
    21,770.96x = 370,837,397.44
  5. Step 5: Solve for x
    x = 370,837,397.44/21,770.96
  6. Step 6: Final answer
    x = 17,033.58

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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.