Home / 36,720.04-55,055.34-21,939.28

Finding the Fourth Proportional to 36,720.04, 55,055.34 and 21,939.28

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Solution

The fourth proportional to 36,720.04, 55,055.34 and 21,939.28 is: 32,894.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,720.04 : 55,055.34 = 21,939.28 : x
  2. Step 2: Convert to fraction form
    36,720.04/55,055.34 = 21,939.28/x
  3. Step 3: Cross multiply
    36,720.04x = 55,055.34 × 21,939.28
  4. Step 4: Simplify right side
    36,720.04x = 1,207,874,519.76
  5. Step 5: Solve for x
    x = 1,207,874,519.76/36,720.04
  6. Step 6: Final answer
    x = 32,894.15

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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.