Home / 36,988.16-55,456.32-13,611.56

Finding the Fourth Proportional to 36,988.16, 55,456.32 and 13,611.56

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Solution

The fourth proportional to 36,988.16, 55,456.32 and 13,611.56 is: 20,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,988.16 : 55,456.32 = 13,611.56 : x
  2. Step 2: Convert to fraction form
    36,988.16/55,456.32 = 13,611.56/x
  3. Step 3: Cross multiply
    36,988.16x = 55,456.32 × 13,611.56
  4. Step 4: Simplify right side
    36,988.16x = 754,847,027.06
  5. Step 5: Solve for x
    x = 754,847,027.06/36,988.16
  6. Step 6: Final answer
    x = 20,407.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.