Home / 36,981.20-51,021.58-21,054.37

Finding the Fourth Proportional to 36,981.20, 51,021.58 and 21,054.37

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Solution

The fourth proportional to 36,981.20, 51,021.58 and 21,054.37 is: 29,047.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,981.20 : 51,021.58 = 21,054.37 : x
  2. Step 2: Convert to fraction form
    36,981.20/51,021.58 = 21,054.37/x
  3. Step 3: Cross multiply
    36,981.20x = 51,021.58 × 21,054.37
  4. Step 4: Simplify right side
    36,981.20x = 1,074,227,223.30
  5. Step 5: Solve for x
    x = 1,074,227,223.30/36,981.20
  6. Step 6: Final answer
    x = 29,047.93

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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.