Home / 36,914.19-50,942.70-21,000.12

Finding the Fourth Proportional to 36,914.19, 50,942.70 and 21,000.12

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Solution

The fourth proportional to 36,914.19, 50,942.70 and 21,000.12 is: 28,980.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,914.19 : 50,942.70 = 21,000.12 : x
  2. Step 2: Convert to fraction form
    36,914.19/50,942.70 = 21,000.12/x
  3. Step 3: Cross multiply
    36,914.19x = 50,942.70 × 21,000.12
  4. Step 4: Simplify right side
    36,914.19x = 1,069,802,813.12
  5. Step 5: Solve for x
    x = 1,069,802,813.12/36,914.19
  6. Step 6: Final answer
    x = 28,980.80

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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.