Home / 39,680.37-54,760.49-21,776.01

Finding the Fourth Proportional to 39,680.37, 54,760.49 and 21,776.01

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Solution

The fourth proportional to 39,680.37, 54,760.49 and 21,776.01 is: 30,051.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,680.37 : 54,760.49 = 21,776.01 : x
  2. Step 2: Convert to fraction form
    39,680.37/54,760.49 = 21,776.01/x
  3. Step 3: Cross multiply
    39,680.37x = 54,760.49 × 21,776.01
  4. Step 4: Simplify right side
    39,680.37x = 1,192,465,155.98
  5. Step 5: Solve for x
    x = 1,192,465,155.98/39,680.37
  6. Step 6: Final answer
    x = 30,051.76

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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.