Home / 30,133.14-41,570.37-21,186.42

Finding the Fourth Proportional to 30,133.14, 41,570.37 and 21,186.42

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Solution

The fourth proportional to 30,133.14, 41,570.37 and 21,186.42 is: 29,227.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,133.14 : 41,570.37 = 21,186.42 : x
  2. Step 2: Convert to fraction form
    30,133.14/41,570.37 = 21,186.42/x
  3. Step 3: Cross multiply
    30,133.14x = 41,570.37 × 21,186.42
  4. Step 4: Simplify right side
    30,133.14x = 880,727,318.38
  5. Step 5: Solve for x
    x = 880,727,318.38/30,133.14
  6. Step 6: Final answer
    x = 29,227.86

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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.