Home / 39,891.05-55,048.93-21,741.95

Finding the Fourth Proportional to 39,891.05, 55,048.93 and 21,741.95

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Solution

The fourth proportional to 39,891.05, 55,048.93 and 21,741.95 is: 30,003.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,891.05 : 55,048.93 = 21,741.95 : x
  2. Step 2: Convert to fraction form
    39,891.05/55,048.93 = 21,741.95/x
  3. Step 3: Cross multiply
    39,891.05x = 55,048.93 × 21,741.95
  4. Step 4: Simplify right side
    39,891.05x = 1,196,871,289.18
  5. Step 5: Solve for x
    x = 1,196,871,289.18/39,891.05
  6. Step 6: Final answer
    x = 30,003.51

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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.