Home / 36,131.40-49,860.90-20,215.98

Finding the Fourth Proportional to 36,131.40, 49,860.90 and 20,215.98

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Solution

The fourth proportional to 36,131.40, 49,860.90 and 20,215.98 is: 27,897.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,131.40 : 49,860.90 = 20,215.98 : x
  2. Step 2: Convert to fraction form
    36,131.40/49,860.90 = 20,215.98/x
  3. Step 3: Cross multiply
    36,131.40x = 49,860.90 × 20,215.98
  4. Step 4: Simplify right side
    36,131.40x = 1,007,986,957.18
  5. Step 5: Solve for x
    x = 1,007,986,957.18/36,131.40
  6. Step 6: Final answer
    x = 27,897.81

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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.