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Finding the Fourth Proportional to 36,982.56, 51,035.80 and 20,215.56

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Solution

The fourth proportional to 36,982.56, 51,035.80 and 20,215.56 is: 27,897.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,982.56 : 51,035.80 = 20,215.56 : x
  2. Step 2: Convert to fraction form
    36,982.56/51,035.80 = 20,215.56/x
  3. Step 3: Cross multiply
    36,982.56x = 51,035.80 × 20,215.56
  4. Step 4: Simplify right side
    36,982.56x = 1,031,717,277.05
  5. Step 5: Solve for x
    x = 1,031,717,277.05/36,982.56
  6. Step 6: Final answer
    x = 27,897.40

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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.